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My gas heater wont stay on - Air Conditioners

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If you have a standing pilot it is possible that the thermocouple is weak or bad. Change the thermocouple and see if that cures your problem. A weak pilot flame on the thermocouple will also cause the pilot to go out.

Posted on Jul 11, 2008

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Kent Portable LPG Cabinet Gas Heater wont lite or once it is lite it wont stay on, where can I take it to be service, obvious lookling at cost factor help needed....


Most independent heater dealers have service departments, that can handle the service and repair of your heater. You may not have to take it to them.

From what you described, it sounds like either the Thermocouple has failed or that the pilot and the ODS Sensor (Which is part of the pilot, if it's a vent-free or flue-less heater) are clogged and need to be cleaned. Especially, if the pilot flame is curling upward and away from the thermocouple, when you try to light it.

If you want to attempt to clean it yourself, all you need is a can of compressed air with a straw nozzle (like you clean your computer with) to accomplish it. It does require some dismantling of the heater cabinet, to access the pilot assembly. If you decide to tackle it yourself, I have included a link to a demonstration of "How to Clean a Burner & Pilot Assembly".

http://www.desatech.com/techDocs/Cleaning%20Demonstrations.pdf

Hope this helped you. Please let me know. Thanks.

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1 Answer

My 30,000 btu Blue Flame gas wall heater wont stay lit, pilot light stays lit but the blue flame went out and had smell of gas I shut off the gas supply but, dont know what is the problem thanks, marty


you could have a overdraft problem causing your flame to go out. check your draft setting at the burner and make sure it's not open too wide. If it is, simply close it it slowly and make sure that the flame remains totally blue.

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1 Answer

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coupler needs replaced, just make sure you have the model# and serial# as the length makes a difference. You will need to turn off the gas, then remove the glass plate and a couple more screws and the coupler is out. Good Luck Tim

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1 Answer

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The thermostat is what is out of calibration...this is built into the gas valve. Unfortunately the part cost almost what a new tank does. My opinion is to replace.....today gas valve....another 8 years the tank...

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1 Answer

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1 Answer

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Check the pilot light.Older standing pilot systems use thermocouples to verify the pilot is burning before the gas valve opens.If the pilot wont stay lit replace the thermocouple.
Newer systems light the pilot.On a call for heat the igniter lights the pilot. When the heat is verified the gas valve opens . Some systems use an circuit board with flashing led lights to help troubleshooting.

Jan 11, 2009 | Air Conditioners

1 Answer

My husband ran a gas line extention up stairs to the master bedroom and hooked up small gas wall heater. The pilot lights, but wont stay lite. It has been about 20 mins or so now. What could be causing the...


Make sure that you are holding down the button long enough to heat up the thermocouple before you let go . The thermocouple needs to be hot enough to signal the presence of flame or the gas valve will stop sending gas to the pilot. If you are letting it get hot, but still have the same problem, the unit may have a bad thermocouple. This is the thin copper tube that goes from the gas valve to the pilot.

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GAS WATER HEATER PILOT LIGHT WONT STAY LIT


It could only be the following problems: Therm couple failed, gas valve failed. Therm couple is the cheaper fix it, so it would be your best first try.

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1 Answer

I have an old gas heater when i go to light it the piolet light wont stay on when i turn the knob to make it hotter.


Old heaters that have a "standing" pilot light that burns all of the time use a device called a thermocouple. The thermocouple sits in the flame of the pilot and when heated by the pilot, produces a very small amount of electricity (approx 30 mV) which the heater interperets as proof that the pilot is burning and indicating that it is okay to turn the main burner on. The thermocouple is a part that wears out and when it fails causes the exact problem that you are describing.

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1 Answer

Gas furnace wont stay lite


I'm a little confused by your terminology. You are saying you have a pilot lite and electric heat strips? Are you possibly meaning burners? Is the heater running for 2 hours straight without shutting off? how cold is it there? Lastly what temperature do you have the thermostat set at and how close does it get to the temp. before it shuts off?

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