Duo Therm Model 59516.531 RV Airconditioner not cooling
This unoit is just blowing ambient temperature air regardless of the thermostat setting. Can anyone give nme some clues as to what to look for in resoving this problem? I'd also appreciate advice as to what gas thse units use please
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Re: Duo Therm Model 59516.531 RV Airconditioner not...
The refrigerants in these units is R-22 But there is no reason to think the system has a leak. You need to confirm that the comprerssor is running. This requires an ammeter. If you don't have one call a technician.
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Sounds like thermostat is failing. There is a factory set resistor that helps the thermostat keep a 2 degree accuracy. Second possibility is that you have a fan or direct airflow from the cooling system, being devirted, that is allowing the cool air hit the thermostat on the wall.
Check incoming voltage first to make sure it's not dropping under load, or low to begin with. Any poor voltage or long runs of extension cords could be causing voltage to drop, thus raising amperage draw.
I see what you see also in the manual. The difference is the Heat Strip package that part is optional and the 600212-001 with the optional heat strips becomes the new 600315-001 I talked to Dometic Duo-Therm and the models are the same but they both are not heat pumps but the new heat strip package comes on when told to go into heat mode when you change the thermostat to heat. The part you purchased will fit both model numbers you listed for your roof top air conditioner. Thanks, Sea Breeze
Same problem. I have a 2005 on a Rockwood Roo. Worked fine in October 2009. Not working June 2010. Problem is not a freon leak, compressor went bad. I banged the compressor gently with rubber mallet then with a hammer but that did not work. The fan runs, the compressor runs but gets hot. Also no indication of freon moving through system as everything gets warm from the compressor outward.