Question about Rheem Gas Furnace 75000 Btu 80% Afue. Rgpn Model

2 Answers

Why will the pilot light on my gas furnace not stay lit?

Have replaced thermocouple. Will stay lit for a few hours then has to be relit

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2 Answers

Have the local gas company look at it

They usually will fix that type issue as well

Maybe a failed part or some cleaning is needed,
pertaining to the problem

I would look at the wiring diagram, if you have one,
to see what all the controls look like & do-- if you
understand that

With an oil burner, there is a photo cell that looks for
a flame, on yours I don't know, but it flames out for a reason
or you have no command for ignition

Posted on Nov 26, 2014

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  • 34 Answers

You have either a defective thermocouple or a faulty gas valve.
Look online for methods of checking the thermocouple
milli-volts reading with a multimeter. 15 or 20 Mv is the average.
--

Posted on Nov 26, 2014

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1 Answer

How do I install a thermocouple part #322391 in a Williams gas furnace


Gas furnace will not light. Thermocouple test with the ...

? 4:03
https://www.youtube.com/watch?v=suen7QlJl4o
May 12, 2012 - Uploaded by grayfurnaceman
I show how to bench test a thermocouple for a gas furnace using a multimeter. This video is part of the pilot gas furnace playlist.... Pilot Light Won't Stay Lit - How to Replace a Broken Thermo Couple on Furnace - Duration: ...

Oct 29, 2015 | Williams Heating & Cooling

1 Answer

Why doesn't the pilot stay lit?


Why Does My Gas Furnace Pilot Light Keep Going Out?

santafeair.com/blog/.../why-does-my-gas-furnace-pilot-light-keep-going-...
Jan 10, 2014 - The thermocouple is the copper rod you see the pilot flame hitting. It's a safety device that controls a small valve to shut off gas going to the pilot ...

Aug 11, 2015 | Kitchen Ranges

1 Answer

I AM WORKING ON A COZY W501E WALL FURNACE AND CANT GET THE PILOT TO STAY LIT. i HAVE CHANGED THE GAS VALVE, THERMOCOUPLE,AND THE SENSOR FOR THE HIGH LIMIT. THE PILOT WONT STAY LIT.


Pretty much the only thing that will do that is the thermocouple not generating enough voltage for the valve to say it's OK.
Usually you need to hold the button for pilot lighting for 60 seconds. You can use a meter to check that it's generating enough power. The thermocouple has to be in the pilot flame properly.

Check this video:
https://www.youtube.com/watch?v=suen7QlJl4o

Gas furnace will not light Thermocouple test with the multimeter

Or see this site:
How to Test Thermocouple with Multi Meter Heating and Cooling

Feb 11, 2015 | Cozy Heating & Cooling

1 Answer

Pilot on my gas furnace won't stay lit


Try cleaning the thermocouple tip if you can see ashes or any buildup on it. If you know the wind isn't blowing it out (had mine blow out from high winds before) then I would change the thermocouple before anything else.

Dec 09, 2013 | Heating & Cooling

1 Answer

Pilot light will not stay lit; replaced the thermocouple, still no work. Replaced the W/R gas valve 36C04-222 on my Trane furnace. Still not working. any ideas? Could I have gotten a bad replacement valve?...


Trane unit ,same White -Rogers gas valve. I have replaced both the gas valve and the thermocouple . Have agreat robust blue pilot while the button is pushed in , let go and the flame does not stay lit . I checked the milly D C volts and have better than 20 . Is there a problem with the new gas valve or the couple not generating enough volts or is there a safty I do not know about that could be open ?

Dec 15, 2010 | Heating & Cooling

1 Answer

Cozy Wall Gas Furnace Pilot won't stay lit


Hi, if you have replaced the thermocouple or thermopile generator, and it keeps going out, you will need to replace the gas valve. That's all it can be is the milivolt coil on the valve, trust me. I have been through this many times.
Sincerely,
Shastalaker7

Dec 29, 2009 | Heating & Cooling

1 Answer

Hello I have a Gaffers and Sattler HVAC System the wind has blown out my pilot and I cant seem to locate were to relite


If you can see the gas valve there is a thin hard wire called a thermocouple that comes from the gas valve and ends uo in front of the pilot light and this is where you would relight the pilot if the pilot wont stay lit then you need to replace the thermocouple you can get one from any hard ware store

Nov 27, 2009 | Heating & Cooling

1 Answer

My universal lp forced air heater model 30 fsa wont stay lit


if its lit by a pilot your thermocouple is bad the purpose of the thermocouple it to keep the gas valve open

Oct 24, 2009 | Reddy HEATER RLP30 30,000-BTU PORTABLE LP...

1 Answer

Pilot light will not stay lit on model 465FX-R wall mounted gas furnace. Thermocouple was replaced but still won't stay lit. Gas is on at the meter. Any suggestions?


It is possible that gas valve is bad, however, try replacing the pilot orifice located in the pilot assembly. If the flame is inadequate it will not generate the voltage required in the thermocouple. Pilot orifices are less than $10 and can be found at your local heating contractor's parts counter. Bring in the orifice to match.

Oct 03, 2009 | Heating & Cooling

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