Question about Dometic Rooftop RV Air Conditioner

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Penguin RV air conditioner does not power on. Have 120 volts to the air conditioning unit. When I turn on power switch to unit nothing come on.

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  • Dometic Master
  • 17,129 Answers

Check on the cut off relay connected to the compressor. Also check if the capacitor to the motor is faulty. You can test for power to the relay and the resistancce of the compressor motor coils to make sure that the motor is intact. if not one of the above is faulty.
replace and test.

Posted on Aug 30, 2010

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2 Answers

When RV is plugged-in a loud humming accures nothing to do with air conditioner. Normal?


A solenoid (magnetic contactor), a motor, or wires can produce chattering sound. I think most likely you hear a solenoid that transfers the RV load from one source to another. A manual transfer switch would be quiet.
Electric alternating current solenoids have laminations that can loosen from each other thru vibration and aging, becoming noisy, and are noramly buzzing when energyzed even when new.

Apr 30, 2015 | Heating & Cooling

1 Answer

Dometic RV air conditioner will not turn on


must have 12 volts d.c. & 120 volts a.c. for the unit to operate.

Jul 12, 2014 | Dometic Rooftop RV Air Conditioner

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Battery drain in a few hours


The rooftop RV Air C0nditioner does not use the battery at all to power anything, there is a transformer in the coach that reduces the 120 volts to 12 volts to the thermostat for safety, but that is never ran by the battery if without high voltage supplying the
12 v control voltage, in fact you can remove the battery and it will have zero effect upon the roof top unit.
The propane furnace with it's 12 volt blower motor will run off the battery alone but not for long, you will need 6 x 6 volt golf cart batteries to use 12 volt power very long, no single 12 volt deep cycle battery has sufficient capacity to single handedly operate much for long.

Sep 16, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

E 7 error code on rv air conditioner


e7 means no 120 volt power to relay module.

Aug 24, 2013 | Dometic Rooftop RV Air Conditioner

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I HAVE DOMETIC DUO-THERM PENGUIN ROOF AIR CONDITIONING ON RV. THE UNIT WILL RUN WHEN PLUGGED INTO ELECTRICITY BUT WHEN GENERATOR POWERED THE AC UNIT KILLS THE GENERATOR ENGINE. WHAT COULD IT BE?


What size & type generator? On start up the AC unit can draw as much as 17-18 amps in some cases, and if your generator is not designed for a quick draw like that it will die.

Jan 25, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Where are the refrigerant charge ports on a penguin rv air conditioner?


There probably are none installed. You have to install them by yourself. Go to your local HVAC wholesaler and ask for an insta-tap. These work very well on rv and window ac units.

Jun 05, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Duo Therm Penguin model 610115.311 AC unit no-power


Actually you should have fried you converter. What is the voltage reading you get for the air conitioner? supply? One should run off the generator and the other on shore powerIs it set up that way?.

Sep 28, 2009 | Heating & Cooling

1 Answer

Air conditioner not working plugged in or on generator, heat not working either--nothing 2000 jayco designer


If you have AC hydro for sure to unit, perhaps a fuse in the 12 volt DC panel has blown, or in thermostat itself. Hear any clicking at AC unit when turned on? If not, check all your fuses in 12 volt DC panel. Check breaker didn't trip also on 120 VAC.

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