To repair an RV Carrier AC, first determine the specific problem, then clean or replace the failing component. Common issues with RV Carrier air conditioners include incorrectly set thermostats, power supply problems, clogged air filters and defective blower motors.
If an RV Carrier AC does not work at all, first check to make sure that the unit is turned on and plugged into a working electrical outlet. Confirm that the thermostat is set to cool and its temperature setting is well below the ambient temperature. If the problem continues, confirm that the unit is getting enough power, and replace any blown fuses.
If an RV air conditioner is running but does not cool well, the air filter might be clogged. A clogged air filter prevents air from flowing properly, thereby reducing the unit's cooling capacity. Clean or replace a clogged air filter as required. If this does not fix the problem, test the run capacitor and the compressor for continuity, and replace any of them if faulty.
If an RV Carrier AC is noisy, examine fan motor and the blower motor, and replace any of them if worn out. If the problem continues, check if the fan blade has broken or rubs on the fan housing; repair or replace it accordingly. Contact a Carrier professional if these repair methods do not remedy the problem.