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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.
So, here are the basics. First, 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. The next thing is to 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.
Then, you should 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.
Also, 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.
Next, you should 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.
Then use a soapy water solution to check for leaks. Put the solution on the location and see if small air bubbles form. If no bubbles form, the system can be recharged.
You should also check the drain hose to make sure it is not clogged.
You can complete your ductless ac maintenance by restoring power to the unit and observing a cooling or heating cycle.