Maintenance Questions
- What type of maintenance does my RV air conditioner require and how often should I perform it?
- Clean the filters at least every two weeks when the air conditioner is in operation. Running the unit with dirty or clogged filters will decrease the flow of air across the cooling (evaporator) coil, potentially causing the coil to freeze up. If the air conditioner is running for long periods of time with dirty/clogged filters, a potentially expensive cleaning of the evaporator coil by qualified service personnel may be necessary.
- If your motor has oil ports, we recommend using SAE 30 weight non-detergent oil. The motor requires only 1-2 drops of oil per year. DO NOT OVER OIL. The oil ports will be visible on the fan motor with the unit's plastic cover (shroud) removed.
- Clean the outside (condenser) coil at least once a year. Blow out any debris which may have collected on the coil. Since the A/C fan pulls air in through the back of the coil and exhausts it from the sides of the shroud, it is best to blow compressed air through the coil from the inside out. You may also wash this coil with water if you choose to do so. Please remember to disconnect all power to the vehicle/air conditioner first.
- Do I need to check or add refrigerant to my air conditioner periodically?
- How often can I expect to have my air conditioner serviced?
- What size/how many BTU's is my air conditioner?
We recommend that you adhere to the following maintenance program to make sure you get the best possible performance:
No. Your Coleman®-Mach® air conditioner is a closed and sealed system and ideally should never require refrigerant. Should you suspect that you have a low refrigerant charge, have the unit evaluated and repaired by a qualified service technician.
At RV Products, we've built more than two million RV air conditioners. A great many of them have never required service. But, as with any other mechanical device, problems sometimes arise which require service or repairs. This type of service should always be provided by qualified service personnel. Years of experience have taught us that most cooling performance losses are not related to refrigerant charge/loss. Most can be attributed to either improper installation or poor maintenance procedures. By cleaning filters, evaporator coils and condenser coils on a regular basis, one can ensure improved performance throughout the life of the air conditioner. If problems occur, have the unit evaluated and repaired by a qualified service technician.
The first four digits of your model number indicate the unit's size in BTU's. The chart below lists most rooftop models. (chart)