Autopsy of a gas valve 

Nice to see these things pulled apart.

Merry Christmas and happy new year to you in 2021! I really appreciate u shareing your knowledge with everyone!! Especially me. Through your knowledge I am able to keep the furnaces I own running safely! Today the local plumbers are on holiday, i could not even get a after hours on call number off the machine. it was -36 here this morning. Turned out it was a high limit switch that failed. I can’t afford to look 👀 at what’s inside a gas valve till I have a failed one lol!! Thanks for all your videos

Very interesting video. Thank you.

Merry Christmas my good friend I have been watching you for 5 years now.Feel like I know you.I would like to thank you for sharing your experiences with me.Have a great day and an even better new year.GOD bless....

Awesome video GFM!!! Thanks for the education!

Good tutorial GFM 👍

Happy Holidays GFM. Nice video thank you.

That electrical receptacle on the wall is very sick looking lol

Merry Christmas GFM!

Thanks, I learned something.

Very nice investigation into what caused gas valve failure...Wish you a very Happy New Year 2018 !!!

thanks for this ...

Ironic, I just took apart my Honeywell smart valve over the holidays. The valve would click off even though it was getting a constant 24 volts. I tested the two capacitors on the board with my ESR meter and they had gone high resistance.

I have same problem I thank there is a power surge or a in consents current problem .

fantastic content :-)

Interestingly enough, where im at we only have propane. often times we get sticking valves, bang on it with something and it unstick for a few fires then restick. I have had a couple different years where it get a lot of valves sticking, never really put it together but last year I started asking customers who their propane provider was. After getting 6 gas valves from the same provider I caught up with one of the drivers and asked if there was any correlation to this or just coincidence. He told me their is a product they use to keep the propane from having moisture(the name reminded me of "calgon" soap commercial), and he said they didnt mix enough of it in so they had a run of no heats with water in gas valves.....I dont know that that is what you got but rather interesting to see water in a gas valve.

Thanks for making this video! I learned a lot from your other videos about valve chains vs. modern valves. I am trying to troubleshoot a SIT-NOVA gas fireplace (Majestic). Could you do a tear-down video of a modern fireplace valve? I'm dealing with a fireplace that won't start. First thing I did was clean up the thermopile. The mfg. spec says it needs 150 mV when "on". My original thermopile hovered right around 150 (when off, it read 300-400 mV), so I decided to replace it with a 750 mV one from Amazon that matched the p/n in my manual. The new one produces pretty much the same "closed" voltage, maybe a little bit higher when the call switch is "open". As it hovers in the 150mV to 155 mV range, the fireplace will "usually" but not always turn on the main gas. Interestingly, when I short out the TH terminals at the valve (I have a simple switch, not a thermostat), the main valve NEVER turns on. Makes no sense to me. Sometimes lightly tapping the valve get it's to open when the voltage is hovering around 151. I wonder if something electrical is wrong inside the valve. I've tried adjusting up the pilot to increase the temp on the thermopile . I'd like to tear apart the valve to see what could be the problem, but since it's possible I just get a bad thermopile from Amazon, I hate to break the valve.

Most house Furnaces now have a igniter and not a pilot so on newer gas valves there will not be a therocouple

What causes a gas control valve to buzz loudly? Bad solenoid inside them? What is the fix just swap the gas control valve out?

I love You!

Sweet!

Ever fixed a Honeywell rv8310e? Not available Any more trying to resolve

hi grey...ive got a neighbor who has an old empire stove wall furnace from 1990 it works but sometimes the gas valve sticks...if i tap gas valve the gas will flow and burner lights...is there something simple i can do to fix this?.. the gas valve part# is BRMR12791

Could you have repaired the connection? Great video - do a combination valve - if you can.

I never knew what they looked like from the inside. I still don't get how thermal couples generate enough electricity to power the gas valve solenoid.

What would be the danger in reconnecting the wire back onto the connector from the solenoid? The solenoid obviously cannot engage without current so where's the liability?

I’m surprised that a thermocouple generates enough current to power an electro magnet (solenoid). We had a problem here where there was water in the natural gas, taking out a lot of furnaces in my area. Gas company’s fault.

Have a Tran XE 60 furnace, from 1988. Pilot light will not stay lit. Have 24 millivolts across thermocoupler, 26 volts across gas valve terminals, continuity across thermocoupler connection on gas valve and body of gas valve. Gas valve is a White Rodgers Model 36C53. Have replaced gas valve twice in the last two years. Any ideas as to what my problem may be?

water in valve no condencation drop on gaa line nxt 2 pipe goig 2 valve4in drop with cap2 drain water of gas line

Water is common in natural gas lines and can come in with the gas to the valve . Lp gas maybe not as much .

So wait a minute technically couldn't you just strip that wire reconnected to that screw put a new liquid gasket around it put it together let it dry and it work?

That gas control valve doesn't need to be level? A furnace person came out to our house and did a bunch of work and it smells like gas and the gas control valve is at a 45° angle

Is that a Fluke 323?

WOW!!!!!!!!!!!!

My gas valve on my fireplace wont open to ignite the burner. The pilot stays lit. Im getting good voltage from the thermopile (600millivolts DC) but when the unit calls for heat by turning on the wall switch I have near zero millivolts. Is this an issue with the thermopile or a possible issue with the gas valve

Don’t turn it on. Take it apart :)

Nice trouble shooting

Maybe the gas had water in it.

hi..sorry no ..this is a gas valve problem.getting stuck...if i tap the gas valve it works...if not fixable ill buy a new valve