How to bleed the oil furnace

This one shows how the oil pump is bled and what different conditions mean.
This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.

[@VanaruEngine]

Grayfurnaceman, you are an internet treasure! After watching a few of these videos, got my tools together and in 15 minutes I diagnosed my oil furnace. It had run out of fuel last winter. Checked for spark, pulled out the burner and checked it over and wiped it clean, then bled out the fuel pump. Bunch of white fluid, then brown, then a bit clearer. All back together and voila, full constant flame, still running steady as I write! Thanks a million!

[@grayfurnaceman]

+Hans Achter Glad it helped. GFM

[@TravisJones1979]

I was able to completely diagnose and fix all the things wrong with my furnace and almost everything was wrong . Thanks to u. I feel like an expert now... and I just got it back on yesterday. It's been down since thanksgiving.

[@grayfurnaceman]

Glad you got it going. GFM

[@BrooxB13]

Really appreciate this video man. Was about to call a technician until I found this. Life saver my man.

[@grayfurnaceman]

Glad I could help. GFM

[@joecabrera8647]

We're in between snow storms here in the northeast and this video was a life saver. I bled both my hot water and furnace burners today and they're working like a charm! Had a length of clear tubing available and as soon as I saw the bubbles I knew I was on the way to fixing the problem...excellent video series!

[@grayfurnaceman]

Glad I could help. GFM

[@MindKontrolleProject]

What size clear tubing did you use? ¼" ?

[@dogplay3327]

i just saved alot of money thank to this guy none of the service guys show you how to do it so thank you.

[@grayfurnaceman]

Welcome GFM

[@EVOL81INK]

Thanks for posting this, this is the one in depth video i could find on the entire internet. My first time owning my own place and came with an oil furnace i have no experience with them and im the guy who wants to know how to work on/maintain everything in my home and garage so this was a giant help. Just a few trips to my shed for the right tools (my bleeder setup was slightly different) bled system till it ran solid, popped the fuse out and back in, flipped the switch to on position and closed her up, thermostat was stuck then after i fixed that she fired right up. THANKS AGAIN !!!!!!!

[@grayfurnaceman]

Quite welcome GFM

[@rollzolo]

Learning a lot everyday, from clothes dryer to water distilling to now oil burners. Thank you.

[@grayfurnaceman]

Welcome GFM

[@grayfurnaceman]

I just picked up a mule to work on, so I will add more vids as I get time for what it is worth. Thanks GFM

[@EddieLeverich]

I know very little myself. I would like to learn more about oil but from the time I take a class to the time that I need to work on one I will have forgot everything that I learned from class. I'll just watch your videos when I need a refresher ;)

[@Honeychild82]

Thank you! I never knew what my bleeder valve looked like. If I ever run out, you just saved me $100 service fee! 😱 Thank you for your video for this DIY momma!

[@grayfurnaceman]

Welcome GFM

[@ibfitswell]

Thanks man, saved me 70 bucks on a service call.

[@grayfurnaceman]

Wow, you have a cheap service tech! GFM

[@VanaruEngine]

For checking spark, I got the idea to grab a nearby 2.5" wood screw and stuck it in to the spring on one side so the point was about 3/4" away from the other spring. Turned on the furnace and saw a healthy spark, then switched it off again and removed the screw. Easy and so much safer than the screwdriver trick!

[@XenaTheQuadCamBikah]

Thanks a million, your video helped me bleed the air from my line after the oil tank went empty. I owe you a Guinness! 👍

[@grayfurnaceman]

Pay up! Anyway, welcome. GFM

[@XenaTheQuadCamBikah]

grayfurnaceman haha message me your address I will send something decent. 😊

[@grayfurnaceman]

OK. Grayfurnaceman, 21616E Wellelsley unit 96, Otis Orchards Wa 99027 Thanks GFM

[@kirkeric]

Ahh, now we might be getting somewhere. If you mean that tiny threaded plug with a hexagon, no. I inspected the old pump and I could not find anywhere on this pump to insert this tiny thing. There sure weren't any holes. lol Where does it go? I know the instructions cautioned about something to do with bypass or something (not looking at instructions at moment). Appreciate the help. You are getting me closer to keeping my family from freezing as the temps drop. :)

[@kirkeric]

I just realized you had a bunch of videos. I wrote on one of your others earlier today and tonight about the screwdriver test. Went through all of these very nice videos but didn't seem to find my problem. I don't see anything that shows where the oil goes when it heads to your jet, through that small tube on back side of pump that connects to your jet. I am not getting fuel coming out of it, although when I disconnect all the way down at the pump, oil is flowing. Small line is clear though

[@ITagEmYouBagEm]

You’re a beast just got my furnace to kick on!

[@grayfurnaceman]

Glad you got it going. GFM

[@lfdvidinc]

Fast forward 9 years,Webster pump,I still see these in use🤣🤣🤣

[@tasharisinger9218]

Thank you very much, this help a lot i got the furnace running again.

[@grayfurnaceman]

Welcome GFM

[@EddieLeverich]

cool. I don't normally watch a ton of videos and I just ran into your channel. You are making some pretty nice videos, keep up the good work!

[@kirkeric]

Yes, this is helpful and I hope I haven't bugged you too much on this. Just for final clarification on the outlet pressure, if I had place a tube on that outlet (just like the bleed valve), run the pump and nothing comes out, that's good indication of what you think - that the pump is shot? That about right? I have that Beckett 7505 system you showed in one of your videos too.

[@alishahorwood231]

This was really helpful! That's so much for sharing!

[@grayfurnaceman]

Welcome GFM

[@grayfurnaceman]

Thanks for the support GFM

[@kirkeric]

ok, pump removed, coupling is not stripped. Looks in perfect condition. In seeing your other videos, the filter inside seemed to be in good condition too, no grime inside. Pump bad then I guess. I have the Beckett Cleancut, A2EA-6520, 3450PSI.

[@geojor]

very practical information for DIYers, thank you...

[@kirkeric]

I was just writing too. Got it. My oil tank is higher actually but the distance is like 30 ft from basement. Lines go from floor level to ceiling then over about 30+ ft.

[@mpuza8388]

Thanks! Worked like a charm.

[@grayfurnaceman]

+M Puza Merry Christmas GFM

[@grayfurnaceman]

If it is sputtering or fog, there is air in the line. If it is a 1 pipe system, there is a bleeder that is the best to use to bleed the air. If it is a 2 pipe, it should bleed itself. If it does not bleed, you could have no oil, plugged filter, plugged line, vacuum leak or a bad pump. Hope this helps. GFM

[@grayfurnaceman]

When I started out it was about 20%. Now probably 5%. Some techs around here dont know how to work on them. Thanks. GFM

[@vikingnortheast]

thanx for posting this.

[@grayfurnaceman]

Welcome GFM

[@grayfurnaceman]

If you have oil to the pump, (this is assuming there are no vacuum leaks on the suction side of the pump, usually accompanied by an air noise from the pump) and there is no high pressure at the outlet, either the pump has failed or the coupling between the motor and pump is stripped out. Hope this helps. GFM

[@kirkeric]

Yes because i bled it successfully and you may recall, i couldn't do that until i removed bypass plug. Thoughts?

[@grayfurnaceman]

Are you absolutely sure the pump shaft is turning? Is the pump rotating the correct way? And as before, vacuum leaks. GFM

[@overthetopblues]

Very helpful. Thank you!

[@kirkeric]

Well crap. Got the bypass plug in and it bled just fine. Still doesn't fire up though. Seems to me, the only two things left to replace are the igniter and the nozzle, both of which I went ahead and ordered. One question I asked a while back but didn't quite get the answer is how do I test the igniter. Your demo has it out of the system to some direct power it looks like but WHEN do I do the screwdriver test if it is in the system? I could use a detailed answer if you would. Thanks.

[@RidebmxSandM]

Thanks! I ended up replacing the pump and now it fires up

[@kevinguyan522]

Can you speak to the external exhaust fan that is used for a horizontal vent situation. I understand that the exhaust must provide negative pressure before the unit will cycle with a red button reset?

[@grayfurnaceman]

You don't need to bleed a 2 pipe. Did you install the bypass plug? GFM

[@grayfurnaceman]

If it is a 2 pipe, the tank is probably below the level of the pump, and wont easily prime. The allen plug is it. There should have been an instruction sheet in the bag with the plug. I have a vid on these, put in bypass plug in the search box. GFM

[@grayfurnaceman]

Thanks GFM

[@Skoot61]

- Can you explain what and how those red jumper wires work in the oil bleeding process? Thanks!

[@kirkeric]

Hi, I'm back. Thanks this tutorial too. Here's where I am so if you could be so kind, can you offer all potential options left? I replaced my pump (I have oil too), I bled it (even though I have a 2 pipe and I removed that bypass thing as you mentioned), I've replaced the igniter (which I just tested), and today, finally, I just got the nozzle and replaced it. Clearly it is not getting fuel. If I disconnect the outport on pump, nothing comes out. Should it? Screw adjustment? What else?

[@grayfurnaceman]

The video is "checking the spark ignitor" and it explains how to check it. GFM

[@jackfrost5381]

Thank you for your video!

[@grayfurnaceman]

Welcome GFM

[@crltnmbr1]

Thank you for your help!!!

[@grayfurnaceman]

Welcome GFM

[@kirkeric]

Ok, about to pull the pump. Hoping to ID problem so I can cancel service call for later today! lol I presume the coupling stripped will be pretty visibly evident. There are no final checks on the pump though right? I mean, if we know it's not coming out and then find that it's not the coupling, it is most certainly the pump? Thanks. Eric

[@kirkeric]

Great. :) Can you just answer this one though. If I disconnect the tube coming out of the pump to the nozzle (the backend of pump), and do a normal pump prime should I see the fuel squirting out or is it forced out in more like fumes/fog? I just want to know what I'm looking for since at this point my focus is on getting fuel out the back end. Thanks.

[@euonymus1980]

Great video. I saw a method that involved jumping FF together and pressing something in (like a contactor) so the furnace continued to run to remove air and water from the tank and lines. How is that method done?

[@grayfurnaceman]

You can jumper FF after the motor starts and the burner will run whether there is fuel to not. Just understand you are bypassing a flame safety control. GFM

[@354sdot83]

This video really helped thanks 👍🏽👍🏽

[@grayfurnaceman]

Welcome GFM

[@kirkeric]

lol...ok. Any recommendation on what to check? I installed this thing precisely the way the old one was and everything is tight. Does this double line/pipe thing tell you anything more? I had a repairman tell me that I didn't even need to bleed it if I have the return but since it's not pumping oil....I need that first. Ideas?

[@kirkeric]

Hello GFM - I'm back now. So, I ordered my replacement pump and installed it. All connections tight, fuel line open and the reservoir with filter (the external one) is full. I go to prime the pump and I got some fuel that initially got in to the pump and bubbles and I've attempted to prime about 6 times and not getting a steady flow. Any ideas? I watched the video you have that's why I mentioned, I know there is fuel, line on, tight, etc. It continues to bubble so I know it;s trying too.

[@maggiechan9939]

Thanks for your fast reply. The furnace shuts off when temperature drop or not using after a while. When it is on high temp, it can restart on its own. You suggested that it could be a leak in the line from the tank to the burner, we want to assume that last because our line in under the ground and tile. My hubby said it might be the oil pump because sometimes he bangs/tap it a little, then it runs. Do you have video to show where he can replace the SUNTEC A2VA-7116 pump? And can you suggest a pressure meter that we can buy online/store for this pump? Thanks for your kindness help in advance.

[@grayfurnaceman]

I have not done a video on replacing the oil pump. As for the pressure gauge, look for a Yellow Jacket 78020 model. GFM

[@riello2362]

its not the fuel unit,, almost never the fuel unit. your line or tank is plugged

[@grayfurnaceman]

Yes. but be sure to check the coupling. GFM

[@kirkeric]

Hello - You mentioned uploading something the other night...not sure what it was or if you did. But, just an update. I'm still down. I've replaced that pump as mentioned, got it priming fine and I just replaced the igniter and still nothing. The nozzle is due in the mail. What else could there possible be? I never figured out how to test the igniter though.

[@theShemofHistory]

Thank you 👍

[@stevetoomey1182]

i agree can learn alot , any links to your favorite places for parts ?

[@kirkeric]

I just watched your video on the bypass plug, one of the only ones i hadn't seen. Do suppose that will resolve the bleed issue? I will get that plug put in.

[@davidclark5138]

Hi gray, my pump look like that but better flow no bjbbles. Have a question on adjusting pump pressure. I know how to do a suntech pump. But is the psi adj. With the Allen screw in the same place.

[@RidebmxSandM]

Now I noticed the motor is making noise as it stops running. I am thinking that bearings are making the noise. Is it possible to do any maintenance? It is a Beckett motor.

[@DfromBoston]

Thanks for the video, what size clear tubing are you using?

[@grayfurnaceman]

I believe it is 3/16" GFM

[@meekakay9475]

It's 5/16

[@kirkeric]

GFM - Thanks. I'm trying to be really specific. lol I have the 2 pipe and I realize I don't need to prime. I am just trying to determine one thing to narrow down. On the outbound small line coming out of my pump to the jet - IF I disconnect that and run my pump to prime, what should I expect to come out? A spray, a fog, a drip, high pressure stream? I want to know what to expect so I can try and resolve this. Thanks. Eric

[@monelleny]

Thanks so much, great video! Do you know the size of the tubing?

[@grayfurnaceman]

I believe its 3/16" GFM

[@monelleny]

@@grayfurnaceman - Thanks much, although I must admit I went out and bought some 1/4", and it is very tight.

[@willclark8108]

good video. my tank was empty. got it filled, but not working. know I have to bleed it. quick question. I unscrewed the nut as to bleed the system. the nut didn't turn by itself... as I turned the nut, the entire bleeder unscrewed as well. the bleeder came off, but nothing but a couple of drips of oil came out. question: is that because the bleeder wasn't in place? or does that mean there's a blockage somewhere not allowing the oil to come out? Or do I just need to leave it open for a while to let out what could be a lot of air?

[@grayfurnaceman]

Will Clark I would leave it open for a couple of cycles. It should come thru. GFM

[@EddieLeverich]

what is the percentage of oil furnaces that you work on in your neck of the woods?

[@gicyurok2]

What is the diameter of the tube you attach to the bleeder valve?

[@capitalr8649]

1/4 same size used for brake caliper.

[@grayfurnaceman]

It will be uploaded tonight. GFM

[@maggiechan9939]

I watched many of your video and still can't figure out what's wrong with my burner. It only can start after I bleed the oil furnace. Any idea about what's wrong?

[@grayfurnaceman]

You could have a vacuum leak in the line from the tank to the burner. GFM

[@ronsbeerreviewstools4361]

Good video

[@Hectorrodriguez-lj7wn]

hi great videos ,i bought a house 2 years ago and with a maybe 45 year old furnace ,replaced stack switch nozzle filter and now im having all kind of issues ,the buerner is old is there any way to just replace the burner cuse my budget is low and the becket burner is not that expensive and if how i do that ,thanks

[@grayfurnaceman]

You can and should replace the burner with a flame retention burner. It is fairly involved to repair. GFM

[@grayfurnaceman]

You got me. I don't know from here. GFM

[@TheMidwestman]

what is the way to fire it up? Which switch will fire up the pump?

[@jandk198]

Great videos! What diameter clear hose fits the bleeder nipple?

[@grayfurnaceman]

+jandk198 I think 1/4 will do. GFM

[@hdyudu]

i don't doubt it an other reasons is the ripoff prices of heat oil this days is having some people switch to something more cheaper like gas or heat pump

[@mrhuntinjunkie]

I've got a long fuel line to my boiler (about 60') from my garage to my boiler and I've always been plagued with air in the line but we recently switched to a clear ultra low sulpher diesel with a biofuel (2%) added and about 3 months into it the air in the line has me bleeding it every 2 days...Ever heard of a connection between fuel differences and air in the line? Hard to believe i've got a vaccum issue after all these years with no change. TY

[@grayfurnaceman]

I can think of 2 possibilities. If the boiler is much higher than the tank, it could be separating the more volatile parts of the oil. More likely, you have a vacuum leak in the suction line that is allowing air into the line. There should be no feral connections on the suction line. They leak under vacuum. The flare connections could be leaking due to not being tight or the flare itself is in bad shape. Hope this helps. GFM

[@mrhuntinjunkie]

grayfurnaceman Appreciate it very much. Checked it again today and (knock on wood) no air and seems to be running well. Think I'm going to have a circulator at the boiler installed to remove air from the oil going forward as this has been an issue on and off for the last 5 years and if I save one service call a year it'll pay for itself soon enough.

[@riello2362]

you need a tigerloop system. fix all problems with air guaranteed

[@mrhuntinjunkie]

Thanks...I had left that comment 2 years ago :) Sound advice though....A tiger loop has been installed for almost that long:)

[@riello2362]

I know it was 2 years ago but no one mentioned it and I couldn't help it because I do it for a living and it seems like people listen to youtube more than they listnen to the guy that has to fix it.

[@michelleydeschenes5579]

Hello Sir, we just found your video. We are up in Canada, frigid cold these past few weeks. Grimsby oil furnace, filter outside was froze. Got it off, replaced, bled the line out there for it to run through. Inside turned thermostat, hit the reset button. Now have been bleeding inside, and was off and on. We do have conditioner in, and are waiting. Hopefully for that to do something. Bubbles have now stopped and nothing. Either it is froze...or? Or?

[@grayfurnaceman]

Try heat tape and insulation on the filter and oil line and be sure you have no vacuum leaks. GFM

[@jeninjeans]

Just had a brand new furnace installed and we continued to have air while bleeding. We hooked up a fuel can before the canister filter and we go air while bleeding. Took apart the canister, sealed all the fittings, new gaskets and ran it again. The air stopped. Hooked up the line to the tank and we have air again. I have an in ground tank. Is there a way to find the air leak or is it best to continue digging up the line outside and replacing the fuel line? Also, it's a two line system.

[@grayfurnaceman]

If you are sure about the fittings inside, yes. I would replace the whole line. GFM

[@spacemanwithraygun3933]

This is sort of relevant, but for the first time I got a message from my Intech "Shutting down to protect sensor". The entire top of the burn chamber had fallen to the bottom and the system was exhausting into the home.

[@grayfurnaceman]

Interesting. I don't think I have ever seen a combustion chamber collapse. I have seen pieces fall off, but not the whole thing. Do you have any pics? GFM

[@rodgerbooth1064]

My problem is that the pump shuts down. Is there a way to make the pump keep running?

[@grayfurnaceman]

You can cover the cad cell before you start it, then remove the cover after it has started. GFM

[@maggiechan9939]

There is no air when bleeding. I just need to bleed for about 15 seconds and then boiler can start. any idea? thanks in advance

[@ramosel]

I have a (very) similar Beckett burner on my pool heater. Is there some way to jump the blower.pump drive when you are bleeding so it doesn't keep timing out?

[@grayfurnaceman]

ramosel You can take the hot lead from power and connect directly to the pump motor. Be sure the power is off. GFM

[@ramosel]

Thanks, I'm sure my problem is in the pump or supply line. The heater lights but won't stay burning. The blower keeps running and it will re-light for a few seconds, go out, re-light, go out and then time out. I think I just need to open the bleeder and let it run a while without the timeout. Thanks for your videos!!!

[@kfhcmed]

Hi Dear! how I can fix the lick air line?

[@raydionne8510]

Have a 2 pipe oil line 60' each way , i here a high pitch whistle sound when burner is running , should I increase oil line from 3/8" to 1/2" any suggestions

[@grayfurnaceman]

+Ray Dionne You can try increasing line size, but the pump may be failing. Sometimes when they run dry, they will start making that noise. It means a new pump. Hope this helps. GFM

[@shaucan]

Hi. We ran out of oil and added 10 gallons of diesel. We started the bleed and oil came spitting out, but all of a sudden stopped and won't bleed again. We don't have a service contract for our burner and my husband is refusing to call someone. Any thoughts? Thanks.

[@grayfurnaceman]

+shaucan You may have plugged the oil filter. I would replace the filter. Also why bother with 10 gallons? It will just run out in a couple of days. Hope this helps. GFM

[@bkoz319]

What do I need to jump out to have a Beckett afg burner, pump and and motor continously run to make it easier to bleed?

[@grayfurnaceman]

What I do is start the burner with the transformer in place. Then I open the transformer and shine a light on the cad cell. You can also jumper the F-F terminals after starting the burner. I will have to do a video on that. GFM

[@bkoz319]

@@grayfurnaceman great thank you

[@rayjay6361]

I am having persistent air problems with my Becky ( Having to bleed and restart about every three days ), Would a tigerloop solve my problem ?

[@grayfurnaceman]

rayjay6361 Single or 2 pipe system? GFM

[@samuelm370]

Hi, I stalled a used furnace with a new oil line, its 20 ft long. I can't get it to prime. The cad will run the 4 minutes to prime but it never brings oil up. I did it many times even poured oil in the line from the top. Is there a way to bypass the cad to leave it running longer?. I can hear the pump running at the tank.

[@grayfurnaceman]

You can jumper the cad cell after the burner motor starts, but I would be looking for a vacuum leak. GFM

[@samuelm370]

@@grayfurnaceman thank you so much for everything you do. I got it to prime. It was strange because I have 12 inches of fuel in the tank and the line feeds from the top. It acted as though it didn't have fuel in the tank. I took a 5 gallon container that had a gallon of kerosene in it and I pulled the line out and stuck it in there and it primed in 15 seconds. After it primed I turned off the burner and put the line back in the tank and re primed. So far so good. I just can't understand what the problem was because I know i had the line in the tank only 3 inches from the bottom and like I said I have 12 inches. Thank you

[@grayfurnaceman]

@@samuelm370 If the system is single pipe, they will have trouble rising in the pipe. They are designed to operate with a pipe on the bottom of the tank. GFM

[@eallen5362]

I have a situation... so one of my kids hit the red switch off and when I woke up there was no hot water or heat now I have a little more than half a tank of oil I tried hitting the reset button but it doesn't stay on I'm not sure why. I'm terrified to bleed the line myself to see if there is air to be cleared and away and have no man to help me can I get a step by step on how to bleed a burner that was built in 1940's

[@riello2362]

shame on you for having a system that old. any problem you have will be your fault

[@20pawranch]

Kevin Dutile You don’t know what her situation is. Shut yer pie hole!

[@marklengal9990]

How do I by pass the burner so it don’t kick on while I’m bleeding?

[@grayfurnaceman]

If you don't want the burner to come on, remove the gun line and place it in the can also. GFM

[@mainelyelectric]

Hey Sam question about my burner you have helped me with. If I wanted to see the oil pressure while running can I I just thread a standard pressure gauge on the gauge port of the pump??

[@grayfurnaceman]

You can. If you leave it on the line the pulsing may damage it eventually. GFM

[@mainelyelectric]

grayfurnaceman Thanks I just wanted to check it and see what it was because I was curious what it would be since I adjusted the pressure very slightly and now the furnace seems to be running smoother than it was. I was going to remove it after anyway. I will let you know what I find out!

[@grayfurnaceman]

@@mainelyelectric Higher pressure is better unless it increases flow excessively. GFM

[@mainelyelectric]

grayfurnaceman I just attached the gauge to the 1/8 gauge port and while the burner was running the psi was about 110-115 or so not bouncing around on the .50gph nozzle installed. With the gauge installed on that port is the psi supposed to drop to zero when the burner is killed? I might adjust the PSI a little bit more and see how the burn looks, but I’m still going to get my oil technician to look at the entire system and see what his thoughts are once I get the oil tank installed. I remember in the past you had told me that the firing chamber and firebox as I have witnessed while working on them in these units are extremely small. I have fully cleaned the inside of this unit but do you think it’s abnormal when you first fire the cold unit up to have a little bit of exhaust positive pressure coming out of the inspection port until it warms up and a little rumbling? It Seems to run fine with the 8 feet of 4 inch pipe horizontal 1/4 inch per ft and 3 feet of vertical insulated vent outside.

[@grayfurnaceman]

@@mainelyelectric It should not rumble or puff out the inspection hole. You are not establishing draft. I would suspect the horizontal vent pitch and the size of the vent should be increased. GFM

[@insolentish4529]

how thick is the clear tube you are using? as in I want to buy one to use.

[@grayfurnaceman]

Insolentish Its 1/4" id I don't know the thickness and its just vinyl. GFM

[@seankelley3943]

thanks it did

[@garrettstearns37]

What size line fits the bleed valve

[@grayfurnaceman]

I think 3/16ths will do it. GFM

[@dave4854]

maybe it's just me ,but every time I've used a paper cup or tiny can to bleed a furnace,My big feet or the hose tipped over the bleed can or the hose jumped out of the can... I now use a #10 can with the hose clipped to the can

[@grayfurnaceman]

Good thinking. Especially if you are using, like I did, the clear plastic hose that stiffens up after being used for oil. GFM

[@empiremack]

Your clear tubing fits more snug than mine, what size is it? Thanks

[@Motoko1134]

Probably a 3/8" ID.

[@user-gz4um7yq9g]

What size is the vynal tubing

[@grayfurnaceman]

You can use 1/4" tubing GFM

[@natashapelly2039]

What do i do if the outlet isnt pushing oul into the fernace the inlet works

[@grayfurnaceman]

First I would check the pump coupler to be sure the pump is turning. Then if there is no oil, you probably have a pump failure. GFM

[@geojor]

thanks...

[@grayfurnaceman]

If there is oil supply and the pump is turning, the pump is bad. GFM

[@Setintomyjourney]

Hello. What size tool did you use? Thank You

[@grayfurnaceman]

I think that was 3/8". GFM

[@Setintomyjourney]

@@grayfurnaceman thank you soo much

[@RidebmxSandM]

What if I am getting oil through the bleeder but not the line to the gun?

[@grayfurnaceman]

I would guess either a plugged nozzle if it is mounted or regulator failure if the nozzle is no installed. GFM

[@polygon344]

Would a regulator just stop working or is it something that gets gradually worse? I have the same problem as the poster above. Oil comes out of the bleed valve but nothing out of the port to the burner when I close the bleed valve. Furnace has been sitting since early spring, worked fine all last winter and now won't ignite.

[@seankelley3943]

I am in the process of bleeding my line but it keep shuttng off

[@grayfurnaceman]

+Sean Kelley It should have bled in one cycle, however you can fool the cad cell by shining a flashlight onto the cell AFTER the burner has started. Hope this helps. GFM