![]() ![]() If you suspect that the control board is the culprit, consult a certified RV technician to diagnose the problem. Failing Control BoardĪ malfunctioning control board can also cause the same symptoms. However, the RV air conditioner turns on and off repeatedly when the thermostat does not function properly. The thermostat is set to the ‘Automatic’ mode, and it is supposed to work fine without any intervention. This problem needs to be addressed as soon as possible because it risks damaging the system components or becoming a fire hazard. The whole system shuts off whenever the compressor comes on. Such a connection transmits enough power to run the fan but not enough to power up the compressor. If there is a loose or burnt connection, it will arc and turn hot, which may cause the on and off the problem. Below are the leading causes of AC short cycling Connection Issues Short cycling is one of the main problems one can experience when it comes to AC issues. Duo Therm RV Air Conditioner Keeps Cycling On and Off But buying from a renowned brand with good reviews ensures that you will get good service and will be covered with a warranty if the unit breaks down. You should ask for professional help for the refill.Įven the most reliable air conditioning system can show trouble. It will be easier to refill if your AC unit uses R410A or R-134A refrigerant rather than the R-22 types. Even if it turns on, it is unlikely to function correctly. Low On RefrigerantĪn air conditioning system won’t work if it is low on refrigerant. Regular servicing and cleaning is an effective way to avoid this problem. Dirty Componentsĭirt build-up in several components, including filters, evaporators, and the condenser, is one of the leading causes of AC system breakdown. Capacitors store high-voltage power, and there is a chance to get electrocuted if you attempt any repair. If this is the problem, always hire a professional to do the repair work. But changing the AC unit’s control board is more complicated and requires professional expertise.Ī failed capacitor or contactor is the reason RV AC clicks but won’t turn on. ![]() Even if the thermostat is defective, you can easily replace it. However, you should examine the AC system’s control board if both thermostat and capacitors are functioning. In the case of a wall-mounted thermostat, use a multimeter to check its voltage. It is defective if touching its wires to each other turns on the AC system. Defective ThermostatĪnother reason the RV air conditioner won’t turn on is the faulty thermostat. Similarly, problems with the AC compressor may cause the whole system to shut down. So you need to check the motor to see if the issue is repairable or you need to replace it. The whole system will shut down and won’t start if the motor is malfunctioning. Dealing with frayed or dead wires could be tricky and dangerous. If this is the case, you should contact a professional HVAC mechanic to handle the issue. The wires that run from the AC unit to the power outlet could be another reason the RV air conditioner won’t turn on. If the power system is working fine, you have to check some other components. Lastly, check the breaker as it can trip for some other reasons. However, it could happen in the sites that still use the old 15A power poles. However, this is not a problem in the campgrounds as they use a 50A service for modern AC systems. It may happen when the power supply of your campsite is too weak to power up the AC system. If it is a blown a fuse or a tripped breaker, you have to change or reset the breaker. ![]()
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