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Thetford N80 EL, not getting cold on gas, replaced gas control valve and burner which cured problem, suspect thermostat faulty, could now hear burner until temp reached. At same time fitted correct thermocouple with two connectors for flame gauge but wouldn't stay lit even after a minute, fitted old thermocouple and worked fine, stayed lit after 15 secconds, sent a replacement fitted it and once again correct one not working. Now I have put the old one back on but that doesn't work either, am I doing something really daft? how tight should collar be? can you over tighten? both new thermocouple operate flame gauge fine. Fridge has always had a problem not turning off ignition, so I just put a bell switch inline.

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 51 Answers

SOURCE: We have a Thetford N80

Try manually lighting the pilot when it is clicking. If it lights you need a new thermo couple let us know what you find out from this step

Posted on Sep 08, 2008

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  • 93 Answers

SOURCE: Dometic rm 2652 fridge works on a/c. i get a check

you may need to change the thermocople this cost about 12 dollars this is what make electricity to epen the gas valve thanks from gilles

Posted on Mar 15, 2009

  • 68 Answers

SOURCE: thetford caravan fridge freezes all food in fridge

Thats a Norcold compact fridge. The most likley problem would be the thermister. Need to do an ohms reading. From inside of the fridge remone the thermister from the fins and unplug the wires. With a VOM set it on Ohms, touch the wires with the probes/ does not matter which probe to wire/ hold the bulb end of the thermister between your fingers, your reading should stat at about 7000 Ohms. Stick the bulb end of the thermister in a glass of ice water, reading should start climbing and go to about 22000 Ohms. If this happens the thermister is good and you need to look elsewhere. If it does not test out you need to replace the thermister. The thermister is a thermostat that controls the heat source that makes the fridge cool. If the thermister reads good you may want to get the circuit board tested.
Hope this helps
Thank you for using Fixya
Jerry

Posted on Mar 30, 2009

jumptrout51
  • 3361 Answers

SOURCE: Dometic 2811 gas/AC refrigerator poor operation on gas mode.

Your gas valve is sticking. Could be a bad thermocouple.
Set it to come on, then with a screwdriver handle or something similar, tap,tap,tap gently on the gas valve to see if it lights.
Once it unsticks it should operate OK.
If it does not unstick, replace the gas valve.

Posted on May 26, 2009

  • 9 Answers

SOURCE: Dometic refridgerator won't stay lit on Propane

A bit more info is needed. What model #, and how old is it? In back, does it have a computer board (underneath a green or black plastic cover, appros 4" x 6")? Im guessing that it does, ('cause you get an error message,) Make sure that you have a good 12 volts going to the board at all times, and make sure that the glass fuses on the board are not blown. If that checks out, than its a real good bet the you have a defective board. For Americana models, you're going to need a Dometic board, and for other models, an aftermarket board will usually do. Althoiugh the OEM ones have a better chance of fixing your problem.

Posted on Jul 26, 2009

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Hayward spa pool heater pilot on, heat does not ignite burners


Don't really think the gas company would be checking your pool heater, they most likely just checked their gas connections. I would suspect a few things; control module, thermostat, gas valve, pressure switch. You say you get pilot light, and as long as it doesn't turn off and on, as if it is not being sensed, then I would suggest the control module is fine. If the pilot and main burner is controlled by the same valve, and your pilot light stays lit, then I would suggest the thermostat is fine. I take back the pressure switch since the pilot will ignite. I would check power to the gas valve solenoid and see if the control module is trying to open the gas valve. I would suspect low voltage, probably around 24v. If voltage is present and no gas, I would say you found the problem.

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Thermocouple has 2 ends. One end attaches to gas control valve, other end sits inside the pilot flame.
Flame heats thermocouple, causing tiny electrical current that is detected inside the gas control valve and keeps the gas valve open so water heater can turn on when thermostat calls for heating.
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If pex line burst, that implies very high pressure, caused by closed system with check valve that stops expansion, or possible clog in the water line, or high local water pressure, or clogged factory-installed heat traps.
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Thermopile is basically a group of thermocouples, that product more electric current that is used to power electronics inside the gas control valve, which issues an error code on the gas control, and some day will send a text message each time out-of-range event occurs.

Copy following links for troubleshoot resources, including troubleshoot by type of gas control valve:
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The igniter is glowing, but no gas ignites?
So either the gas is entering combustion chamber and not lighting because igniter is positioned incorrectly -or- no gas is entering combustion chamber because air in gas line or bad gas control valve thermostat or gas line is clogged.
When you 'restart' the water heater, somehow you are getting gas to the burner and it is igniting.
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1 Answer

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Thanks for using Fixya!

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