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Dometic ac with atwood 1h2c thermostat will not come back on

Dometic ac with atwood hydroflame 1h2c digital thermostat. The unit cools good until it reaches the desired temp and shuts off automatically , or you turn it off and then the thermostat turns off, no led read out, and you cannot turn it back on. (It',s like the thermostat has no power) The last time this happened we went without ac for 2 days, then we took the rv approx. 200 miles, plugged the rv's power in and the ac unit came back on. It has a solar charger on the ac unit. Not sure if this is relevant.

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Just a guess, as I am not familiar with the solar assist, if the stat is wall mounted I would remove it and verify if there is wither standard batteries, or a "watch" style battery. hope this helps

Posted on Jul 27, 2009

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I have a Dometic a/c with a digital thermostat. When I have it on cool the compressor will cut off when the proper temp is reached but the fan continues to run and won't shut down unless I turn off.


It could be could be several things depending on what type of AC it is. is it a window unit, or a split system. Could be a bad thermostat or thermostat wire or bad board or a safety or wired wong.

Nov 17, 2015 | Dometic Heating & Cooling

3 Answers

Dometic rm7732 not cooling


Hi,

If the refrigerator isn't cool, you need to answer some questions, then see if the compressor is running.

First, answer these questions:

  • Is the refrigerator completely dead? If so, see “It's stopped completely.”


  • Is the thermostat knob turned to the proper setting? If not, reset it.


Next, see if the compressor motor is running

The compressor is a football-sized case with no apparent moving parts. It's on the outside of the refrigerator at the back near the bottom. If it is humming or making a continuous noise and your refrigerator is still not cooling, there may be a more serious problem with one or more of several different components, we recommend contacting a qualified appliance repair technician for further help.

If the compressor is not running but you do have power to the refrigerator, there may be a problem with one or more of these:

  • The compressor


  • The Thermostat


  • The overload, relay, or capacitor


  • The defrost timer


  • The condenser fan motor

Jun 17, 2008 | Dometic RM2652 Refrigerator

1 Answer

Is this a thermostat problem or system failure?


it sounds like no communication from stat to board. cable connections

Jun 03, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

My Dometic roof top ac doesn't cool. Fan runs fine, no COOL air. With thermostat in off position. Checking the voltages I found 118v at the breaker. At the run relay, 118v going in and a coupl


Please reply with Model number of bottom of AC unit ( upper) . Can be seen from inside usually. Thermostat model, plus if controls are at the ceiling assy or at thermostat on wall.

Jan 17, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

My RV AC unit was runs good on high cool last night but this morning it was only running on low fan(some what cooling it Seems)What should I check first. thermostat,fan ???


low medium high speed of fan iscontroled by selector switch on the thermostat or recheck the thermostat if ok check control wirnig from thermostat to the fan relay on control borad and from relay to the motor.

Sep 03, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Dometic AC fan mode or cool mode wont start. Has a climate control t-stat, lights up.But nothing on AC ?Whats with phone line connection ?


Some manufacturers use phone line to use as communication between control box on AC unit & thermostat. (very common.) Make sure 120VAC is on, and pull cover off thermostat & look for a glass type fuse possibly blown.

Aug 15, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

AC comes on and stays on until you move the setting up to around 90. At times the unit will not cut off no matter what setting you choose. If it cuts off at 90 after manually moving it there, you only have...


If the house is actually cooling, but the thermostat thinks in 90 degrees in there, you definitely need a new thermostat. If the house is actually 90 degrees, the AC SHOULD cycle on and stay on till it reaches the preset temperature. Since it doesn't make sense that you would complain about the AC cycling on at 90 degrees, I can only conclude that you have a faulty thermostat.

Jun 11, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Duo Therm Thermostat anticipator adjustment


replace your thermostat with a cheap digital heat/cool thermostat - no more problem. (be sure to turn off the power to all parts of the HVAC system before changing the thermostat.)

May 28, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

ATWOOD MOBILE FURNACE RUNS WHEN IT WANTS/


Check your furnace for power. will be 4 wires. power ground and 2 thermostat wires. Check for power at the time delay relay, if you have power there check for power going in the fan motor, if power in motor wire, motor is bad. If no power in motor wire and power going to circuit board take the 2 thermostat wire apart and wrap the 2 together comimg from the thermostat. Fan will stat in about 30 seconds. If it does you need a control kit in the ac. But sounds to me like you have a furnace problem.

Jan 14, 2009 | Dometic Heating & Cooling

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