It's cold INSIDE! | DIY gas valve change | Can I fix the furnace myself?!

Four days without heat, I think I have a bad gas valve in my furnace!! The weather has definitely turned cold, and it's solidly winter around here. And We had our first snowfall of the year, so it's REALLY cold! And wouldn't you know it, the Goodman furnace conked out!
I was able to troubleshoot the operation down to what I suspected was a bad gas valve. But I am not an HVAC tech, so I had one stop by and run a diagnostic, and we verified that it is, in fact, a bad gas valve. Unfortunately, he did not have one on his truck, and it was going to cost an additional $600 for his to order it, and come back in a week and replace it. I don't have that kind of time. So I need to DIY this!
Fortunately, I was an aircraft mechanic in the Navy, and valves are valves. I jumped on Amazon, ordered the replacement valve, and two days later, it was on my doorstep. Removed the old valve, installed the new one, and it fired right up! We are nice and warm again for these snowy January days!
Without a doubt, anyone with a basic level of mechanical skill can perform this task. just make sure you understand about leak checking, operating pressures, etc.
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#furnace #hvac #diy

[@demetriosa7646]

Can’t stop a GOODMAN!

[@DadItYourselfDIY]

No you can not!

[@fernandor1369]

HVAC tech here, looks good to me for a diy job. Only thing I would say is to have the gas pressure tested with a manometer to insure the correct pressure is entering and exiting the valve. Pipe wrenches come in handy when working on gas valves and lines.

[@craigbraswell4269]

Same as I was thinking. Also. He's lucky it's natural gas and not LP gas, or else he could really cause some damage without a manometer.

[@DadItYourselfDIY]

The HVAC tech that did my troubleshooting verification didn't say anything about a manometer. What is that?

[@fernandor1369]

@@DadItYourselfDIY it’s used to check gas pressures

[@lordlee6473]

@@craigbraswell4269what kind of damage are you talking about

[@DadItYourselfDIY]

Yeah?

[@craigbahruth]

Get a bench vise. Can have bolts with wing nuts, lock washers so you can install/remove vise when you need it. Just a idea 💡. 👊✌️

[@DadItYourselfDIY]

I need to get a permanent bench first!

[@craigbraswell4269]

If I were you, I would either call back the service company or invest in a manometer to check your 1st + 2nd stage manifold gas pressure to be safe. The factory will usually get pretty close, but sometimes it can be off by 30%.

[@DadItYourselfDIY]

Great advice.

[@bigdaddy4975]

That’s a new valve it really needs the gas pressure checked and set. Purchase a manometer.

[@DadItYourselfDIY]

Already ordered one. Follow-up video next week.

[@eastboundtrucking]

just wondering if you should check the outlet gas pressure on the gas valve?

[@DadItYourselfDIY]

The pressures were preset on the valve and marked. Seemed pretty straightforward. But I'll research that.

[@elektrokinesis4150]

you should check manifold pressure to be sure you don't risk carbon monoxide, and also soot buildup which could mean a future heat exchanger replacement if it cracks from uneven expansion

[@DadItYourselfDIY]

Saw that in the comments. I have a manometer on the way. My furnace is out in the garage, so there is that.

[@elektrokinesis4150]

@@DadItYourselfDIY it's probably within 10% of spec already, but its good to be safe

[@DadItYourselfDIY]

@elektrokinesis4150 Agreed!

[@DadItYourselfDIY]

@elektrokinesis4150 Is it standard or do I need to look in the manual for the inlet and outlet pressures?

[@elektrokinesis4150]

@@DadItYourselfDIY It should be written on the furnace unit in inches WC as manifold or outlet pressure, not to be confused with inlet pressure. If not then look in the manual. The reason why it needs to be adjusted is that natural gas is not always the same pressure or flow rate. Depending on the building and pipes used, you can have different amounts of restriction.

[@johnthreadgill2843]

How much money did you save

[@DadItYourselfDIY]

I was quoted $600 plus parts to replace. The service call was $150. I bought the valve for $100 on Amazon Prime. So me doing it was about $250. Had I had them order the part and install it, it would have been, $150+$100+$600. So, I save $600 (assuming they didn't mark up the parts)

[@pacificostriker]

Hello handsome much time without see your videos

[@DadItYourselfDIY]

🤦‍♂️

[@snakeeyes1649]

HVAC technicians are like mechanics they take advantage of your ignorance and markup everything. It’s disappointing. As soon as people learn how to do things themselves, you see them posting hate. Kudos my friend!

[@DadItYourselfDIY]

Thank you for that. While I'm not an HVAC tech, I do have training in very similar systems.

[@techdaddy7955]

No we don't. Us techs don't make the pricing. We charge what our companies make us charge. You think we are out there to screw over the customers that keep us in a job? We actually think the cost of repairs we have to charge is ridiculous. At least us good techs anyway

[@DadItYourselfDIY]

@techdaddy7955 I agree, it was definitely his company. He literally told me how to fix it, saving a ton of money.

[@techdaddy7955]

@DadItYourselfDIY a good tech will do that. We would rather provide knowledge than anything. I've walked people through fixing thier furnaces over the phone on after hours just to try and save them the cost of after hours service call fees

[@DadItYourselfDIY]

@techdaddy7955 That's super cool!

[@danlookabill2567]

Wow Your not qualify to tell people how to work on their furnace

[@DadItYourselfDIY]

Probably not. I never told people how to fix theirs. I showed people how I fixed mine. What are your recommendations?