Enjoy the summer by simply doing a self-maintenance on your Mini Split unit.

By: Luis Soto

Preventive maintenance is an important factor to increase the life span of your air conditioner and reduce break downs. Every year there are a few little things that you can do to make a big difference.

Here are a few tips to increase the life of your A/C:

  • Turn off the power supply leading to your mini-split unit.
  • Find the intake grill and lift it up from the bottom and Remove the plasma filter and soak it in water and detergent. Rinse thoroughly and allow to dry overnight before returning it to the mini split.
  • Vacuum the mini split using the hose attachment on your vacuum and Wipe down the mini split with a damp cloth and dry thoroughly.

home mini split


  • The outdoor condenser should always remain clear of sticks, garbage or other debris that can fit through the protective grill and damage the fan or compressor. Most condenser fan blades are made of plastic and can easily be broken by items fitting through the grill.
  • Once a year you should spray out the condenser with a hose or a bucket of water and let dry without use for at least 24 hours. Remove the few bolts on top of the condenser and remove top cover. When the cover is removed you can easily see any damage or debris inside the condenser.

mini split maintenance

  • Check the copper piping inside the condenser and line set connections on the side of the condenser for any oily residue. Refrigerant leaks leave an oily residue and a quick check once a year can save you hundreds in repair costs. Manufacture warranties will not cover the air conditioners compressor if it is operated low on refrigerant.
  • The preventative maintenance on the condenser is to make sure the unit is still level. Over time condensers can sink and become uneven. Non-level condensers are a quick death for the unit’s compressor.

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