20 Most Recent Dometic Rooftop RV Air Conditioner Questions & Answers


It means that an error has occurred. If you have a 4 button comfort control. Follow these steps to reset:
To initiate a RESET, do the following in the order
listed:
1) Turn control on to ensure annunciator data and light are present. If data and light are present, continue to next step. Depress MODE switch to activate annunciator light.
Simultaneously depress the bottom two buttons (temperature UP and DOWN) and hold.
While holding these buttons down, depress the MODE button once and release.
Release the two buttons previously held down. Depress the MODE button once again.
At this time the light should extinguish, and the mode should register “OFF”. If not, repeat these steps.
Retest system ensuring that all functions are present
and operational.

If you have the five button comfort control. Turn the unit off and hold down the mode and zone buttons together. While holding them down, turn the thermostat back on. Hold the buttons down until an FF appears on the screen. Release the buttons and the display should return to normal. If not, try it again.

Dometic Rooftop... | Answered on Apr 25, 2019


Contact, American RV company at (626) 513-4777 they can help you out.

Dometic Rooftop... | Answered on Jan 24, 2019


I'm assuming when you say 'doesn't work' you mean 'nothing comes on,' i.e. the fan or the compressor.

If that's the case I would check for the AC breaker to see if it's tripped. Usually a 'tripped' breaker will look half on and half off, but sometimes it will be completely in the off positiion. Either way - it's usually because of a malfunction of the AC unit, so if that's the problem I would moniter it closely to see if it trips again. If it trips again in the immediate future I would then want to investigate the AC unit for the cause.

Also, some RV's have fuses in the AC circuit - so you could check and see if you have any fuses labled AC or AC control voltage. If so - you can usually - tell by looking whether they are bad or not. If that's not possible try replacing your 'AC labled fuse' with a new one of the same size.

I would also check your power supply (where the power cord to your RV plugs into) to make sure it is providing the proper voltage to your RV. Note: They also have breakers out on the box that you can reset. If they (breakers) appear ok - and you are at a RV park you could have the Park personel - check and to be sure the proper voltage is availible to your RV.

good luck!

Dometic Rooftop... | Answered on Jan 11, 2019


Unsure if that is a refrigerator or an Air Conditioner.

Please add information to your question as to the model, or whatever you can tell.

Dometic Rooftop... | Answered on Sep 22, 2018


Search with manufacturer website and also review of users. You can with Carrier,Hitachi,L.G.,...........

Dometic Rooftop... | Answered on Aug 08, 2018


need to see if drain pan stopped up or fan blowing water off coil

Dometic Rooftop... | Answered on Jul 26, 2018


check breakers the clicking is dc activating relays. check high limit on furnace might be manual reset

Dometic Rooftop... | Answered on Jun 07, 2018


compressor overheating

Dometic Rooftop... | Answered on May 17, 2018


First replaced the thermostat then check on condenser unit that's outside .make sure the fan is running when compressor runs .if not there is your issue .If fan runs and compressor keep shutting off you might have a dirty coil so clean it out with water or you might have a leak in the system causing unit to shut off on low pressure .if this is the case you need to call a service technician .
Try simple things first like clean coil ,capicator and fan operation.

Dometic Rooftop... | Answered on Mar 13, 2018


Most likley this is caused by a pressure switch dropping out then making again after the pressure drops off. Try cleaning your coil on the outside on the roof as most likley it is a high pressure switch causing this problem.

Dometic Rooftop... | Answered on Mar 09, 2018


Don't really understand what you mean by roof top duct unit .if it's a roof top unit and water is leaking down your vent then you have a clogged drain line .

Dometic Rooftop... | Answered on Mar 04, 2018


Replace the thermostat it ain't no good no more

Dometic Rooftop... | Answered on Feb 22, 2018


check thermostat wire and thermostat itself

Dometic Rooftop... | Answered on Feb 06, 2018


usually 13,000 in front but if enough power and you don't mind the more expensive one go 15,000

Dometic Rooftop... | Answered on Jan 29, 2018


bad cooling unit replace whole unit

Dometic Rooftop... | Answered on Jan 25, 2018


You need to get a different thermostat.you can change an analog thermostat to digital, but you have to replace the motherboard with a digital compliant one. You can't just change the thermostat. Your best bet is to put back the old thermostat or upgrade to a different compatable thermostat

Dometic Rooftop... | Answered on Jan 20, 2018


need temp sensor

Dometic Rooftop... | Answered on Jan 20, 2018

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