- The air filter should be cleaned regularly
They are usually easily accessible in the front cover. Just remove them, wash them and re-install
them. This should be done at least every three months.
- Clean the outdoor unit
Shut the power to the unit off. Then, with a garden hose, you can gently wash out the coil. Hold the
nozzle at about a 45 degree angle to the coil. This should help to keep from smashing the fins on the
coil. If you smash some of the fins they can be easily straightened with a small screwdriver.
- Check the electrical connections inside the condensing unit
Ensure that all the terminal connections are tight and look for signs of a wire getting hot. If you
see discolored wires or partially melted wires, you can repair them and then ensure the connections are
- Look at the contact surfaces on the compressor contactor
If you see signs of pitting or burning on them you should replace the contactor.
- Examine the run capacitor(s) for signs of deforming or leaking
If they are bulging or leaking they should be replaced.
- Look for evidence of refrigerant leaks
Look at all the flare connections. If there is a leak, the connections will usually be oily and dirty.
It is usually a simple matter of tightening the connections. Be careful not to over torque them or bend
- Check the drain hose to make sure it is not clogged
- Restore power to the unit and observing a cooling or heating cycle