Question about Dometic Rooftop RV Air Conditioner
This symptom is in control panel circuit.The common causes circuit problem is cold solder or loose connection that why the machine funtion abnormally and it cause the machine to overheat and shutdown automatically and not turning on. The switch and control chip are the usual suspects because the switch experiences lots of electrical and thermal stress and the control chip is a complex IC. Also possible is a defect in the circuit board such as a cold solder joint. A cold solder joint is where a lead of a component is not soldered at a high enough temperature and results in a bad electrical connection which can respond to physical shock and thermal stress.Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected . When the aircon unit turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. A solder joint may also be broken or cracked . Look on the front and back of the board along the defective circuit to see any components that look like they are not soldered effectively or the solder connection is cracked or broken. A cold solder joint looks dull and/or bulging unlike the smooth and shiny normal solder joints. Its better you resolder all components parts joints of control panel circuit board.Thats is the best solution for this kind of problem . Good luck; Regards: VOTIT
Posted on Jun 27, 2009
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Posted on Jan 02, 2017
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