Dometic Rooftop RV Air Conditioner - Answered Questions & Fixed issues


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 | 1,459 views


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 | 207 views


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

Dometic Rooftop... | Answered on Jul 26, 2018 | 415 views


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

Dometic Rooftop... | Answered on Jun 07, 2018 | 1,732 views


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 | 1,257 views


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 | 232 views


Replace the thermostat it ain't no good no more

Dometic Rooftop... | Answered on Feb 22, 2018 | 434 views


check thermostat wire and thermostat itself

Dometic Rooftop... | Answered on Feb 06, 2018 | 387 views


or bad board in ac

Dometic Rooftop... | Answered on Feb 01, 2018 | 304 views


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 | 337 views


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 | 647 views


Go to your heater and locate the circuit board inside. There is a 3 amp fuse that protects the board and it is a regular auto fuse and isn't made for any surges in the system. When you turned your generator on with the system on, chances are you surged the system and that fuse went. Breakers allow for surges where fuses don't

Dometic Rooftop... | Answered on Jan 20, 2018 | 358 views


Shut it off and get it checked. Ammonia is dangerous as I am sure you are aware. Ammonia smell is an indication of a leaking cooling unit. Time for a new fridge. Sorry.

Dometic Rooftop... | Answered on Jan 20, 2018 | 166 views


bad cooling unit replace whole unit

Dometic Rooftop... | Answered on Jan 25, 2018 | 737 views


If your thermostat no longer controls your furnace possibly could be the control board in the furnace or a shorted fan relay.

Dometic Rooftop... | Answered on Dec 03, 2017 | 285 views


need temp sensor

Dometic Rooftop... | Answered on Jan 20, 2018 | 565 views


breaker

Dometic Rooftop... | Answered on Nov 23, 2017 | 149 views


possible bad motor

Dometic Rooftop... | Answered on Nov 14, 2017 | 277 views


bad capacitor or motor

Dometic Rooftop... | Answered on Nov 14, 2017 | 453 views

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