Question about Dometic Rooftop RV Air Conditioner
After a thunder storm my roof top air no longer worked. Checked all fuses & brakers, the 3 amp fues in the analog control kit # 3107541.009 that controls the furnace & air condioning was all that was blown. I replaced the fuse. Now the furnace works but the air does not. I have disconected all items from the control box one thing at a time untill all items are disconected. The fuse still blows when i set the thermostat for air conditioning, even with nothing connected to the control box. Is there a way to confurm that the control box is or is not the problem. LC in ohio
Had one doing similar recently, and after a thunder & lightning storm. Nothing worked, but kept blowing 2 amp fuse in thermostat, when anything tried, heat or cool. Pulled plastic control box down from inside upper unit (AC) made sure breaker was off, took of plastic cover and smelled inside, and could smell burnt plastic smell. Replaced, control box, that got fan only working. Tried another thermostat , everything worked as it should. Turns out the lightning, or power surge, or whatever, shorted out the thermostat, and control box at same time.
Posted on Aug 14, 2008
There are many variables to this situation, but suspect a thorough inspection of the roof top unit may find a bunt circuit. This may include the relay, a control transformer, etc.
Posted on Aug 07, 2008
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Posted on Jan 02, 2017
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