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Ductless AC Maintenance, A Step By Step Guide

With our ductless ac maintenance tips you can ensure that your hvac system has a long life. That is good considering the cost to replace it. You will also save energy and have lower utility bills. Most dealers offer service contracts but, with a little help, you can do it yourself and save. The usual dealer service contract can cost $200 or more. If your unit is for cooling only, then you will only need to go over this in the springtime. If you have a heat pump, then you will want to go through this in the fall as well as the spring.

  • 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 tight.

  • 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 the lines.

  • Check the drain hose to make sure it is not clogged
  • Restore power to the unit and observing a cooling or heating cycle
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