Furnace Gas Valve Not Opening - How to Fix It

If your furnace gas valve is not opening or opening but not lighting the gas, this video will show you how you can fix it. I go over the furnace gas valve troubleshooting step by step and explain everything you can do to try to get your gas valve to start working properly again and igniting the gas. The reason I don't go into gas pressure adjustment is because the gas pressure on a gas valve does not adjust itself. If your furnace randomly stopped working, it is very very unlikely that the gas pressures changed. Those only change when someone was messing with them. I also did not go over checking or testing the gas valve resistance. That is because testing the ohms on a gas valve solenoid is not an accurate way to determine whether a gas valve coil is good or not. It is much more effective to test the voltage going to it instead. If there is power going in but the valve is not opening, then the gas valve is likely bad and should be replaced.
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#furnace #airconditioner #appliancerepair #heating #airconditioning #hvac #wordofadvicetv

[@WordofAdviceTV]

⬇ Other Videos You May Like: How to Clean Burner Orifices: kzbin.info/www/bejne/l36XgIuDbdeohM0 How to Manually Light Furnace: kzbin.info/www/bejne/Y5Owq2R7o5V3ick How to Clean Furnace Burners: kzbin.info/www/bejne/bJbLnGOEj7t5mck Furnace Sequence of Operation: kzbin.info/www/bejne/d4KnkICbma6eoqs How to Replace Furnace Ignitor: kzbin.info/www/bejne/Z5O1pHl3gsyNiLM Furnace Error Codes Explained: kzbin.info/www/bejne/gGm9lpqjabl2oq8 Furnace Parts and Functions: kzbin.info/www/bejne/nX-Qhnyoa51latk Most Common Furnace Problem: kzbin.info/www/bejne/aXvSn5-VibGepqc

[@hankrmartin153]

Have a carrier 2008 ,40000 btu. All components work, Igniter works does come on but gas doesn't come on. With wires removed holds 26 volts for 8 seconds. When connected to valve and volt meter, votls flash for fraction of a second and then seem to kick out the relay. When voltage is supplied from another 24 volt source, gas valve opens and lights. Has power with no load, Soon as it's connected the value. Power from board seems to just click off. Any suggestions ? Thank you very much.😊

[@jackwong8742]

I rarely leave KZbin comments. Watching your video and learning how to do trouble shoot and providing explanations. You should win a Nobel peace prize for your contribution to the home owners community and what a true hero to help people unlike most HVAC companies who I have dealt with their main goal is to cover their operations expense and not to the customers best interests

[@AutobondTowingandRecovery]

In the last 20 years I can count on 2 fingers how many times I’ve liked and subscribed to a channel. I can’t say that anymore after today. Beyond informative. Great delivery style.

[@WordofAdviceTV]

Thank you sir! It's an honor.

[@adrianreyes1090]

I got to admite it.. I don’t comment very often on videos.. but yes.. very useful information without too many words. Straight to the point. Thanks

[@PresScott2008]

Here's another scenario for you (from personal experience). If the gas valve gets too cold it can tend to stick. For example if you go on holidays in the winter and set your thermostat really low (I was setting mine for 5 C / 41F) it can get cold enough that whatever lubricant is inside may get too gummy to allow the valve to move. After banging my head against the furnace for hours trying to figure out why it wasn't working (and watching all your videos on the subject!) I had an "ah ha!" moment and got a heat gun and warmed the valve up to a normal operating temperature and BINGO... working furnace! Thanks so much for these videos. Because of them I've extended the life of my furnace by several years, fixed it several times (new blower, new flame sensor, unclogged sensor lines) and I'm not afraid to rip it apart and put it back together in order to find out whats wrong with it. You've probably saved me hundreds of dollars over the last 5 years!

[@WordofAdviceTV]

That's a great tip! Thank you for sharing! I've heard that multiple times from people who were able to get it fixed like that. Glad to hear that my videos have been helpful to you throughout the years! Stay warm this winter my friend and may your furnace be problem-free for at least the next 10 years!

[@djlancer88]

I was having issues with gas valve after replacing the control board, unscrewed it gave it a few good taps and some time later we had heat. I almost gave up

[@SixDot2]

Bruh you literally just saved me from these cold days ahead thank you!

[@haydenhilliard110]

I dont comment on videos. But you’re seriously the man. Been tying to diagnose this thing for a week. 47 degrees in the house when i woke up this morning. But before this video, whenever i would put my multimeter on the gas valve wires, it would click open right away, i would read 24 v, and the burners would kick on, as if i were a crazy person imagining there was a problem. Little did i know i was just wiggling the loose connection with the multimeter probes… thanks so much!!!

[@dankelley9361]

Jay, just love your instructional videos over the years. You’re one of the few techs that share real & accurate information for the homeowner. Learning home home appliances work is always great information, knowledge is power & that power can assistant when you need to call in a professional.

[@chrisvelasco9133]

Dude you just saved me at a job. The board wasn’t giving me an error code, but I tried moving the gas valve wires after the ignition stage and it worked!

[@WordofAdviceTV]

Glad I could help! 🙂

[@sarahridgeway2346]

Dude!! My god today! Furnace wasn’t working, 57 degrees in the house 15 degrees outside! 😮 I watched your video and wiggled the wires and it worked!! Thank you so much!

[@paulrozinski1488]

It’s that time of year again to start your furnace PM’s . When it’s the first 40 degree day is NOT the time to find out the furnace doesn’t start. Here in NYC, we no longer have a neutral period between AC and heat. It’s either one at all times. Thanks again , Jay. Stay well 👍👍👍

[@WordofAdviceTV]

Thank you for the reminder! I appreciate you stopping by for the new video my friend, stay warm with this winter!

[@jimt7851]

Thanks Jay. More first class, straight to the point, furnace info. Thank you!

[@sheilam4964]

I had to save this vid because there is no way I'm going to remember how to do each thing on the long list of everything. Thx for filming this and sharing it.

[@WordofAdviceTV]

You're welcome! Good to hear that the video qualified to be saved for later. 🙂

[@yongpark9478]

I never comment on videos but you deserve recognition for yours. You saved the day. My wife and kids thank you for helping us figure out what was wrong with our furnace. 2:41 was the winner for us. thank you. thank you, thank you!!!

[@WordofAdviceTV]

You're very welcome! Glad to hear you were able to get the furnace fixed, stay warm!

[@salgalotto1]

You are awesome. You were my last resort today and your advice solved my problem by simply checking the wires.

[@jorgesegura7333]

Thanks for sharing master! You're one of the best teaching on KZbin!!!!

[@rodmeszaniec7187]

Your videos are so easy to follow and has helped myself fix my furnace issues twice, you take the time to explain everything so extremely well so a regular person like myself can understand I thank you so kindly for posting the so very helpful videos and information.

[@WordofAdviceTV]

You're welcome! Good to hear that the videos are easy to follow and have helped you fix your furnace multiple times. Have a marvelous new week and stay warm this winter!

[@petercampobasso1802]

You were right the wire was loose. You saved me a lot of money. Thank you. It wasn’t pushed in all the way maybe I jarred it out.

[@MrJaredhenning]

This helped me figure the gas valve is my problem. I tapped on it and it started to work. Thank you! Little worried it might get stuck on, so I'm just going to leave it off until i can replace it

[@fs7694]

I watch every one of your videos beginning to end with no apparent need. I am 100% sure that one day I will need something from one and will be ahead of the game! And yes Jay, I can not spell congadulations 😄

[@WordofAdviceTV]

It's an honor that you watch my videos even though you don't actually need the information at the moment. Thank you! I am sure the day will come when the things you learned will save the day. I hope the congradulations bit at the end didn't come off as offensive instead of funny. 😅 I appreciate you stopping by for the new video, have a phenomenal new week, stay warm this winter, and may God bless you and yours!

[@boilermakerstl]

Great Advise! After unplugging/reconnecting the wiring harness connector from the controller board the gas valve works as designed! We have a working furnace with heat again and it's 20 degrees outside! Thank you!

[@George-re4be]

awesome video sir..when I jiggled the wires while the igniter was glowing the gas valve clicked and came to life!

[@WordofAdviceTV]

Thank you! Glad to hear it worked for you. Stay warm!

[@jg769]

Same here!

[@BeyondMillennium]

Excellent video my friend. I really appreciate your style of handling the situation. Working on a job like this right now. EDIT: Read other comments after making mine. It seems you're doing something right. Keep doing it!

[@brucemoriarty9964]

Thanks again. You have a great clear voice. Your a great help without over doing it. Thanks so much for what you do for all of us. 👍🙂🎃

[@WordofAdviceTV]

You're very welcome and thank you! That's nice of you to say that. I've gotten comments that hate on my voice so it's good to hear the opposite sometimes. 😊 Have a wonderful new week!

[@callofduty4eternity]

Thank you this video was very helpful. Sure enough, a jiggle of the wire going into the gas valve when the ignitor started to glow made the furnace start to work again.

[@goldenboy4262]

Thanks for the video, just fixed my gas valve cost me $200, Bonfe company is not cheap at all, even though I'm a member and paid $14 per month.

[@fivestring65ify]

I just replaced my valve and I'm getting gas to the valve, but nothing to the igniter. I I'm going to use this video to see if I can get it working. Thanks for this video. ❤❤

[@dougmead7669]

OMG!!!!!!!!!!! Your video was spot on! It was a loose wire connection on one of the two gray wires from the motor to the gas valve switch. Wiggled them around, and the gas valve turned on, and now I have heat at 6:32 in the am, in Illinois!!!!!!!!!!!!!!!!!!!! Thank you!!!!!!!!!!!!!!!!!!!!!!!!!

[@WordofAdviceTV]

Lol, I love it!! Your enthusiasm is awesome, I'm happy to hear you were able to get your furnace working again, thank you for taking the time to leave a comment, stay warm!!

[@zar3037]

@@WordofAdviceTVI seem to have the same problem with a lose wire . Do you replace the wire or what’s your solution?

[@andresbarragan8595]

GREAT GREAT GREAT VIDEO FROM CHICAGO IM YOUR #1 FOLOWING YOUR VIDEOS THANK YOU SO MUCH GOD BLESS YOU

[@WordofAdviceTV]

Thank you my friend!! I really appreciate my #1 Following from Chicago!! You're welcome, I receive the blessing and may God abundantly bless you and yours as well!

[@eighty2snkrs]

My inducer motor starts, ignitor glows, but when the gas comes on nothing. This morning i gave it a lil blow when the gas came on and 🔥 🔥 🔥. I was thinking the ignitor needs aligned but it worked fine yesterday. Worked for a few hours then nothing. Tomorrow ill try cleaning the orifice. Thanks great detailed video!!

[@Jason-wc3fh]

You'll be wasting your time with the orifices. They never plug up. Never once have I seen them plugged up on any furnace.

[@eighty2snkrs]

@ good to know and glad i didn’t. Ive notice the higher the thermostat setting the better the chance it fires up. I want a smart thermostat but not w/o figuring out what the issue is first.

[@Eddy63]

Congrats on another info filled vid Aloha from across the creek ... Thx

[@WordofAdviceTV]

Thank you my friend!! Always good to see you here. Winter is coming! Especially in the land across the creek. 😄 Aloha from Hawaii, I hope you have a spectacular new week!!

[@ChrisCalnon]

I’ve been working on my Amana for 3 days now. Replaced the valve and still no ignition. Had 26 volts at the valve and THOUGHT I had a click but no gas. Just tried your jiggle technique on the harness and bam, ignition. I can’t thank you enough. I was losing faith and now I just need a harness.

[@WordofAdviceTV]

You're welcome! Glad to hear you were able to finally find the problem! That's always a good feeling.

[@rafiullahmamond8415]

Good English simple and easy

[@spelunkerd]

Connector fitment problems are common in automotive circuits, too. A cheap tool that sometimes helps with that is an oxyacetylene tip cleaner, which has a set of abrasive probes of various size that can clean any oxidation on the contact surface. Often one can tweak the fitment by squeezing the female end of the connector tight so you don't have to jam something into the side. It's humbling to know that the most common problem with fitment is caused by the last tech, who stuck his multimeter probe into the female connector. I like your technique where any probing is done on the outside in, so the probe would make fitment tighter, rather than looser. A drag test later verifies a good mechanical connection.

[@WordofAdviceTV]

Thank you for explaining in detail about the connector fitment problems! That really helps paint a clearer picture of what is really going on. I appreciate you stopping by and sharing your thoughts on the topic! Have a marvelous new week good sir!

[@user-or7ys7yk4p]

Thank you for all your great videos 📹

[@jaimevazquez536]

Thank you very much Jay!! Excellent videos that really help!

[@zekenzy6486]

Another great video as always. Thank you for sharing. Have a nice weekend

[@WordofAdviceTV]

Thank you my friend! The weekend was good and may your new week be wonderful as well!

[@stevetate4817]

Thank you for help kept me warm at 3 A.M sticky gas valve GOD bless

[@condor5635]

Great video ! - my gas valve was not opening so to test it I took direct power from the primary transformer (24V AC) and connected it to the gas valve just to make sure mechanically it was opening and closing when powered/unpowered. It was.... therefore checking the voltage it was apparent that the valve was NOT getting 24V from the control board at the appropriate time. I changed out the control board and that fixed it saving hundreds of dollars.. Now I wish I knew what relay (I am assuming it is a power relay on the board) on the control board was the problem for I really would like to learn more about the next level of repair - replacing a single $5 relay in this case instead of the whole board. That may be more complicated to undertake but I sure would like to learn. There are 3 Zettler relays AZ942H-1C-18DT that I am guessing it is one of. The back of the board is super tight and several contacts... oh well have wait to learn more about that approach.

[@DayClanTribe]

yes, I've replaced the relay on the board for $2.50. It's a smaller relay. I've replaced the larger as well for the blower motor. they're not hard to trace. Use the schematic on the back of the door and then look closely at the board for the trace to the relay.

[@condor5635]

@ I guess tracing it to define which one is the fuel valve relay that was the issue. Do you just trace that using your multimeter? I’m assuming one of the three or four are dedicated to the fuel valve.

[@DayClanTribe]

@@condor5635 When you check the schematic you'll see the color of wire coming from the gas valve to the board through the plug. Then you can use an ohm meter from that terminal onto the board or just look at the visual trace. Sometimes you have to hold the board up to the light to see through it, it depends if the trace is on the surface or sandwiched between layers.

[@izzymoney85]

Jay great work man 👏

[@WordofAdviceTV]

Thank you sir! 😊 Glad you liked the video, thanks for stopping by!

[@netalekh6443]

Thank you! 👍👍👍God bless you!!!

[@WordofAdviceTV]

You're welcome! God bless you and yours as well! 🙏

[@cesarmartinez3582]

Great video u help me a lot about my gas valv

[@markthomas4083]

Very informative video!

[@michaeltrowbridge7174]

Great video

[@WordofAdviceTV]

Thank you sir! Glad you liked the video!

[@ChrisGolfPath]

the best show

[@gatekeeper65]

You're awesome. Take care, and have a great day.

[@bills6946]

43 years experience and I tell all new techs, if you can get a stuck closed valve to open by tapping it, it can also get stuck in the OPEN position when the call for heat expires, allowing gas to continue to flow. NEVER LEAVE A FURNACE OPERATIONAL IF THAT OCCURS. Shut the gas supply and get a new valve. Forget the lawsuit. You could be criminally charged if there is a tragedy. Your customer would rather be cold than dead.

[@jonl2996]

100% agree I told my apprentice the same if you need to tap it in order to make it work is good to help heat up a space while watching it but don't leave it running and turn off the gas and remove w from the board and then get a new gas valve

[@WordofAdviceTV]

I haven't hear of this happening before but it does makes sense. Definitely something to pay attention to, thank you for the warning!

[@boby115]

@@jonl2996 & bills6946 absolutely 👍. I was a first responder / HVAC service technician for the gas utility in STL for 35 years and the scenario you mentioned happens more often than the average HVAC technician might think. Most of the time they would come in as a typical gas odor at the furnace but more than a couple times I would find that furnace door blown across the basement.

[@harrydickson4575]

Great job explaining everything 👍👍👍 and your right on congrats lol 😂

[@WordofAdviceTV]

Thank you good sir! Haha and good to know that you agree about the congrats bit. 😄 Have an amazingly blessed new week my friend!

[@jaimegonzalez6926]

Another awesome video thank you

[@WordofAdviceTV]

You're welcome! Glad you liked the video!

[@JunoTafoya]

Thank you very much,just subscribed

[@myidisinhim559]

I'll share my furnace adventure from this past week. Simply put, its a gas furnace that would not ignite and heat the house. The thermostat would click to activate the start sequence. The "fan" that draws in air from the outside and blows the exhaust to the outside would turn on. But nothing would happen after that. Im not that handy, so after checking the ignitor...which looked good...i called the hvac repairman. He came out, checked stuff out, and thought the module/part that senses airflow might be the problem (not the gas regulator). He said there's a membrane in that module that may fail over time. So he replaced that part. But still it was a no- go. After he called a peer for other suggestions, he blew air from a tank canister into the exhaust pipe opening where it internally connects with the exhaust fan. (I know I'm not using correct terminology, but hopefully you can follow along.). Voila...it worked. He speculates spiders might have built webs that blocked that air flow enough to cause the problem. The spiders cost me almost $300 in labor.

[@lucidgaming1153]

Sounds like the tech didnt do his job. A pressure switch can be tested for correct operation using a manometer and verifying the pressure is enough to activate the switch.

[@myidisinhim559]

@@lucidgaming1153 It's hard to find knowledgeable and ethical repair people for appliances, HVAC systems, autos, etc.

[@30rdmaga]

​@@myidisinhim559yup most are just frickin salesman nowadays

[@WordofAdviceTV]

Good to hear that they were able to get it fixed and my condolences to your wallet sir. Thank you for sharing your experience! I agree with the other commenters, that this issue could have been found before replacing the part but the problem you had isn't exactly a common one so I can't blame the tech, especially if he is relatively new to the field. May your furnace work problem-free for the next 10 years now. Stay warm this winter!

[@MarioGarduño-s2e]

$300 for a furnace repair not bad at all

[@FunWithBits]

Congrats on the great video. 😄 Thank you for real though.

[@stevebock1129]

GREAT videos !!! .... quick question. I'm a maintenance tech at a large apartment property. We have found many times instead of replacing the entire gas valve that we are able to just replace the electronic ( coil ) part. What are your thoughts on this ?? We've had 100 % success rate so far. Thanks !!

[@WordofAdviceTV]

I think that's great! Where I worked we were always taught to replace the whole gas valve, supposedly for safety reasons but I'm thinking it's mainly because that makes more money and it's easier to order a whole gas valve instead of tracking down the coil. If it's the electronic part of the gas valve that is failing, I think it's great that you are only replacing the coils. Personally I applaud that!

[@TheReason101]

So have another trouble shoot option. Turn gas shut off off leave gas valve on turn thermostat off and turn on the power use jumper from r on the board and a jumper from c on the board and put one on each side of the gas valve to see if it clicks. (Be careful don’t die) 😅 I was getting a code that said gas was off while flam was lit kind of code and I used that test to make sure it wasn’t sticking and it wasn’t found that the furnace hoses needed to be cleared. Aka Pressure switch was kicking off the gas valve. Also would like to learn how to trouble shoot smart valves if possible.

[@kenjoh.4196]

Thanks for the video ... apart from my igniter being removed and replaced, I banged on the gas valve with a rubber mallet and it fired up ... The gas valve gets stuck closed and that's why the furnace wont ignite. Is there some kind of repair kit to do a minor repair or is it rigged to where I have to purchase an entire brand new gas valve? Let me know, i would appreciate that greatly ...thank you.

[@justinvanrees4995]

Should be a way to repair

[@markbernasconi6982]

The On/Off Switch on the front of the Gas Valve can get dirty. This prevents the gas valve solenoid switch from working when 24Vac applied (mine did). Turn off power and gas to furnace first. Check resistance between C and M spades on valve with connector removed. It should be OL in OFF and 50k Ohms to 25m Ohms in ON. If only reading OL then time to clean. Use electric contact cleaner sprayed into the switch while moving the switch up and down it. Retest with meter.

[@sziltner]

Have you moved back to the mainland? Minnesota? 👍🏻

[@WordofAdviceTV]

We might eventually do so but for now I have to be content with a disconnected furnace in my garage. 😅 Still living in Hawaii.

[@chrisabe9726]

Hi Jay, Everything on you video sounds very straight forward. But in my case, the gas value is not opening, the red LED light is solid on (so no error code), and when I check the voltage to the gas value and turn the thermostat on, it actually shows 8 volts before the thermostat is turned on and zero once the furnace is going through its cycle. And it goes back to 8 volts when the igniter turns back off. Does that make sense?

[@hvac24]

Hey Jay, I had a similiar problem, turns out it was the gas valve. I originally thought it was a pressure switch issue because the error code was “low pressure switch failed open during trial for ignition”. Turns out there was nothing wrong with the switch or the exhaust , drain , tubes, etc . I’m just not sure why some furnaces do that where it gives you an error code , but it is something completely different. I’m still new into service but I guess you learn from mistakes ! It’s best to go by sequence of operation right ? Thanks Jay

[@hvac24]

I was getting e223 or e227 on a Lennox , low pressure switch failed opened

[@WordofAdviceTV]

Oh that's an interesting one! Thank you for sharing! Yeah, sequence of operation is vital with furnaces.

[@Jason-wc3fh]

The furnace board is still just a dumb dumb board pre-designed to "help" guide us in the right direction with error codes based on electrical faults at certain moments while running and/or starting/stopping. Not all scenario's are perfectly engineered into the circuitry to catch the fault perfectly and aim it directly at the exact part. This is obvious when you go over many manufacturers error codes and the big "LIST" of possible reasons for the fault you need to then further narrow down.

[@dineshrasaily9902]

Yes I’m having this problem and also I check the voltage at gas valve connector got 14 Volt instead of 24v Control board failed or something else?

[@WordofAdviceTV]

Is the control board blinking any error codes? From what you described, it could be a loose connection, bad transformer, or a bad control board. 1. Try wiggling the wire connectors as you are testing the voltage. Does that change the readings? 2. Test the secondary side of the transformer, how many volts is it outputting? If not 24-28v, then it's a bad transformer. (also verify that it is getting 120v going into it) 3. If you can't find any loose connections and the transformer is outputting proper voltage, then it's likely a bad control board?

[@dineshrasaily9902]

Thank you

[@dineshrasaily9902]

1 short and 4 long

[@Dicktoben]

@@WordofAdviceTV I had the same problem, going back today. I only had 14v as well. I changed the board , still 14 volts. Super frustrating

[@thomaspassamonte3390]

Dude I like your hat

[@WordofAdviceTV]

Why thank you! UEi gifted it to me and I rather enjoy it too. 😄

[@misfit67]

I Have found in older FAU that the solenoid in the valve is stuck. I tapped it and freed it.

[@WordofAdviceTV]

Ah that's a good point! Tapping on the solenoid might actually be more effective than the body of the gas valve. Thank you for sharing!

[@jroche26]

I had that same condition blower comes on, igniter lights up but no gas is delivered. Reason was the burner tube end were rusted preventing the gas to spread evenly across tubes. Replaced tubes and all is well. That was a year ago and again the tubes are rusted and furnace occasionally won’t start. Replaced them again. My basement apparently needs a dehumidifier.

[@lucidgaming1153]

One tip I have for Goodman furnaces. They have a silly design where the wire the condensate pressure switch in line with the gas valve common. This will not throw a pressure switch code and the ignitor will still come on like everything is ok even if the switch is open for whatever reason

[@WordofAdviceTV]

Good to know! Thank you for mentioning that!

[@justinvanrees4995]

If this occurs how do you temporarily bypass the pressure switch

[@marshallandroxy]

Burners on Goodman gmp075-3 weren't igniting. Everything tested okay but not ignition, I blew on the burners really hard when the hot surface ignitor was glowing and the gas ignited and lit up. Best guess the in-shot burners are dirty?

[@jeffdull3613]

Thanks, Jay I had the same issue with my gas valve would open, but it would not ignite. I wiggled the wires and then it would ignite was wondering the circuit board to where those wires connect to can you purchase that or do you have to replace the whole gas valve?

[@HaiPhan-we9we]

Hello thanks for your videos, my furnace will turn on and reach the set temperature but when the room temperature drops it doesn't come back on. When it reaches the set temperature the blower motor stops but the inducer keeps on spinning indefinitely at a slower speed. I've replaced the air filter and changed the pressure switch and it still hasn't solved the issue. Do you know what else might be the issue? Thank you.

[@WordofAdviceTV]

Sorry to hear about the furnace troubles! When this happens, have you tried checking if the control board is blinking an error code? It could be a tripped safety switch or perhaps the control board is failing.

[@HaiPhan-we9we]

@@WordofAdviceTV Thank you for for reply, yes the control board is blinking an error code. I'll check the safety switch and control board.

[@djlancer88]

Had to give mine a wack after replacing the control board. Do you think it would be a good idea to clean off the gas line tips where it comes out?

[@wolfman7393]

Helps to write the sequence of operation with a sharpie on the outside of the cabinet when it’s working normal.

[@SOFTAIL4ME]

What about a older furnace that has a pilot light that lights when holding the bypass but Gose out when released. Thermal coupler is testing ok 25 or so millivolts? Would a low voltage from transformer be causing it? It clicks when unhooked the connected.

[@growinginportland]

I've been watching your videos, and I have an interesting one. My Furnace actually Turns on goes through the entire start up sequence . It actually starts up you feel the cold air coming through the vents, but after 3 minutes, I've timed it, the air stops blowing through the vents in the house and no heat comes out. The furnace continues to run, but like I said no heat comes out. I replaced the air filter and cleaned the flame sensor just for good measure, but still does the same thing. Any ideas? I've got a repair guy scheduled for Tuesday, just in case.

[@WordofAdviceTV]

Sorry to hear about the furnace troubles! Is your furnace control board blinking any error code when this happens? Do the burners come on at all or no?

[@growinginportland]

@@WordofAdviceTV no error codes that can see from the portal. But maybe I’m not looking in the right peep hole. I believe the burners come on. It gets through the entire start process but just before the heat kicks in cuts off and like I said runs for 2 more minutes before shutting off. Maybe I need to watch the entire start off process again with the lid popped off again.

[@WordofAdviceTV]

@@growinginportland Is the blower motor coming on at all? It almost sounds like it is overheating and all you're hearing is the inducer motor running. The blower never comes on.

[@growinginportland]

@@WordofAdviceTV I just took the lid off again. The gas valve is fine. The fans are blowing. It's the igniting. The flames never come on. This explains why it shuts off after 2 minutes. I'll check to see if you have a video on this. Thanks for your reply. Appreciate it.

[@seantheenthusiast]

I'm working on a Lennox horizontal, and I am only getting 14 volts to the gas valve. I've already changed the board, and I'm still getting the same results. I have good continuity from the two wires going to the gas valve, I do have 28 volts coming from the Transformer, though. I do not have any error codes either. What's your thoughts on this?

[@willclute8094]

I was surprised but the wiggle of the wires worked for me. Have them zip tied in position. This is probably a temporary solution but i am going to let it ride for now.

[@a0abes]

Had issue with a high efficiency hot water heater.... and followed similar steps... and regretted not doing first check check there's gas going through the meter outside !!! (The only gas appliance in this house is the heater...and the gas meter got some debris in it. Gas company tech replaced meter and all was quick and free)

[@jasonkarlsven5216]

Is it possible that the valve on/off switch turns itself off? Or did my service tech turn it off after doing a regular maintenance 2 months ago? I turned it on and everything is now working fine.

[@WordofAdviceTV]

Probably the service tech. This would be the same as the light switch in your room turning itself on or off.

[@jasonkarlsven5216]

@@WordofAdviceTV thanks for the reply! I was mostly I guess wondering if these switches generally had some sort of automatic turn off in the event of a problem. Sounds like probably not.

[@WordofAdviceTV]

@@jasonkarlsven5216 Ah thats what you meant. Apologies for the misunderstanding. No, the gas valve does not have any auto shut off features. At least that I know of.

[@wkobayashim]

have you ever had trouble removing those brass cover caps for gas pressure adjustment (LP sticker)? Mine are stuck. How can I remove them without stripping the brass?

[@Jason-wc3fh]

you need to use a man sized slotted screwdriver. Not some little wimpy housewife one for tiny screws. A nice big one that fills the entire brass head of the slot. Then you press in hard, like a man, and crack them loose... And if you don't have a manometer available to check and confirm those pressures, then you might as well leave them rightfully alone and not mess with the pressures at all.

[@budcmour]

My furnace problem is the opposite. At the beginning of the heating season, or end, when the furnace runs maybe once or twice in a day, I smell gas emanating from the furnace when it's off. I have to turn off the gas line valve. During the winter, when it's cycling on and off throughout the day, it works just fine. Is it a weak valve that is opening when not in use?

[@neelpatel8036]

I am not getting voltage on the gas valve. Looks like a bad circuit board. Trane XL 80 Where would you recommend getting the replacements from? Is it worth it getting the ones from ebay?

[@WordofAdviceTV]

E-bay is good. It's rare that you get a bad part, just try to get one that allows returns just in case.

[@justjaybee9930]

Make sure you get the correct part number from the control board. I have a trane xl80 and ordered 2 incorrect models before getting the correct 1. Should be number,number-M-and 3 numbers after that

[@yami4g63]

Mine will always light the pilot, but only sometimes light the burner. Duration of time the burner is lit is random. Sometimes even goes for a full cycle. Nothing seems to change how it is acting. ITs a Armstrong sx Ultra 80

[@kennyadvocat]

Any tips for the opposite problem? Boiler kicks on fine but doesn't shut off. Somehow diaphragm valve is getting jammed opened until I shut the gas line. Then it resets fine.

[@erniehernandez8114]

I've a 36J24-618 in my tempstar furnance and I made it work with the tapin last winter, but didn't work this one. Do yoo have a video how to replace it?

[@jemlyn67]

But what if the wires are in a molex connector? Can I unplug it and stick the probes in the connector or does a wire need to remain attached to the gas valve?

[@010101andy]

My gas valve is clicking repeatedly. Flames come on and then it shuts off after about 5 seconds. Kind of sounds like the valve is opening and closing repeatedly. Is it a good idea to replace the valve? I don't want to aimlessly throw parts at it. Thanks for any help

[@WordofAdviceTV]

This sounds more like a flame sensor issue. Have you tried cleaning the flame sensor? If yes, then next I would suggest this video: kzbin.info/www/bejne/Y4Kuea1ngttse9ksi=_8tUOzxwnmRogv57

[@010101andy]

I don't think I explained correctly. It's not just clicking on and clicking off. It's clicking multiple times at once rapidly. Like 10 times in 5 seconds

[@danz58]

I don't have an adjustable, can I whack it with a pipe wrench?

[@WordofAdviceTV]

Sure thing! 😄 Might be even more effective.

[@daviddrakeford9567]

The video on how to manually lighting the furnace when the igniter isn’t working?

[@WordofAdviceTV]

kzbin.info/www/bejne/Y5Owq2R7o5V3icksi=iqjRKHJbirSFXzpa

[@jimmyvollman7596]

So if i get no "click" on my gas valve when the igniter is glowing, i need to replace my gas valve? Is there no "fixing" the valve?

[@firebird510-q1f]

Question for you my furnace has power to the gas valve,checked with meter I hear it click replace igniter and flame sensor,cleaned gas valve orifice. Still no flame removed gas line smell and hear propane, have gas to my stove but no propane coming out of the valve on the furnace. Does this sound like a bad valve?

[@Jason-wc3fh]

You basically answered this yourself with all the information you provided.

[@losmoore3358]

My gas valve on my goodman system doesn't have any wordings just 2 wires. How do i test it on voltage meter ?

[@Dowhatyoucandonow]

My valve was 22 years old and It was smelling like burnt electronics a good smack its working again but I ordered a backup valve ,the selenoid also feels hot but is working still

[@jakequirk2859]

What if you hear a very short click? Like it clicks but it’s like not letting gas through

[@casa_ceballos]

PLEASE HELP! I forgot to return the cover when i changed my furnace filter. I found it off 24 hrs later when i went to see why it was no longer working. I can’t find the reset switch and it wont do anything but click when i turn the power on

[@WordofAdviceTV]

Ah unfortunately the video I made for exactly the problem you are having is not edited yet! Would have been nice to refer you to it. Here are the 10 things I go over, perhaps this will give you some ideas of what to look for: 1. Furnace circuit breaker tripped 2. Furnace power switch off 3. Thermostat batteries weak or dead 4. Bent thermostat pins or loose wires 5. Furnace door switch not fully closed 6. 3 amp fuse burned out 7. Bad transformer 8. Condensate pump or drain pan backed up 9. Furnace is overheating/stuck high limit switch 10. Control board is bad

[@casa_ceballos]

@@WordofAdviceTV Thanks for the advice! i will be eagerly waiting for that video to go live!

[@WordofAdviceTV]

@@casa_ceballos No problem! I'll try to get it done and posted Saturday or Sunday.

[@eastboundtrucking]

just get a long neck bic lighter and light it yourself. hahaha

[@ronamo111]

does anyone know why i seem to be getting to much gas from my valve. I did set it with a manometer to 4 inches water column which is what the furnace calls for

[@lucidgaming1153]

What makes you think ur getting too much gas? 2 stage or single stage?

[@ronamo111]

@@lucidgaming1153 flames are bouncing around the outside of the chamber and it's not blow back and single stage. I turned the gas down and it was acting perfect but i had to turn it way down.

[@bernardocisneros4402]

@@ronamo111 How old is the furnace?

[@ronamo111]

@@bernardocisneros4402 it is at least 25 years old or more but in pretty good shape

[@bernardocisneros4402]

@@ronamo111 Have you cleaned the gas nozzles (spud orifice) with a torch tip cleaning set and the burners with a steel wire brush? Some really old ones from the 1960s you actually clean the burners with a hacksaw blade. I'm sure your burners are not that old.

[@kneenee71]

Just had a gas valve with fittings replaced and it’s still not working. It worked for like a day and then went back out again. I’m at the point where I think I should just go ahead and get a new furnace because it is 20 years old I’m tired of working on it. I’ve spent out a lot of money and it hasn’t worked for a full week yet..

[@arishrivers]

I'm getting around 13v... is that a problem? gas valve isn't opening

[@jamalrobinson8328]

I had a gas valve click on and off every few seconds…what would cause that?

[@ronamo111]

can anyone answer this one I came home from work one day and when I stepped in the house I was hit with a blast of hot air and the inside of my house had to be 300 degrees the furnace had kept running and the high limit switch had failed why didn't the thermostat shut it down this was a few years back but it still bugs me why?

[@brandonbrandon4077]

RoFLMFAO..... I like the joke/truth at the very end of video.

[@TRINInDC925]

I was using my gas fireplace to heat my home until a couple weeks ago. I hadn't noticed an issue until during the day it seem like the heat wasn't coming on and my sister noticed it for the holiday. So I put the fireplace back on. Saw a status code 10 retry/ recycle delay on my boiler. So i reset the boiler and raise the temp on the thermostat since it was now detecting the heat from the fireplace in the next room. It seem to work but then I lowered the thermostat as it was too hot and turned off the fireplace. Well yesterday it did the same thing again. So I go check the pilot light and it's lighting when the call for heat is given, I hear the click from the gas valve but no burners were lighting. I started checking for loose wires as that has happened in the past but didn't see any. I left the boiler on and it then got the 62 error soft lock out, max retry exceeded. So that's when I started looking on YTU, KZbin university. I was not thinking it's the gas supply or the valve as the pilot light was coming on. But I stumbled across a few videos but this one was the most helpful. I wanted to say thank you as I tapped on the gas valve when I heard the click and after a couple times I saw the burners light up. The heat has been on ever since, which is a full day. I'm hoping the valve is unstuck and working again. After watching the order of operation video, which I know is different as I have a boiler but it was still helpful as I learned few things. Plus I was then looking more at the gas valve and can see there is a separate gas line from the valve that goes to the pilot, so I'm guessing it's not getting stuck close like the main part of the valve. I was going to clean the burners thinking that was the issue, which I'm sure it's needed. But with the heat back on I'll wait and not mess with it till after winter. I suscribed as the few videos I've watched of yours, I enjoy the info. I think I may have watched one of yours when I was working on my hot water heater few months ago, which I did get working but then went out again and then replaced it. You have great content and very informative. Thanks and congratulations 😊 as you now have a new subscriber. Happy holidays.

[@NOBOX7]

This video has some problems , testing the gas valve disconnected is a bad idea . If the board is bad it can still send 24 volts but if the contacts are bad on the board solenoid or the pressure switch then the voltage will drop when connected to the valve showing a problem but not when the valve is disconnected , you have probly caused thousands or people to go buy a gas valve they didnt need . usually the pressure switch is the culprit , any thing over 2ohms of resistant's will drop the voltage below the valves operational threshold

[@gtpforever]

Don't forget that if your furnace has a smart valve with a whole bunch of wires going to it and a code comes up on a flashing LED in the center of the valve that doesn't point to any safety item just go ahead and replace the furnace. Anyone dumb enough to replace a smart valve with another smart valve deserves everything they get. 😂🤣😂🤣