Air Conditioning Unit Maintenance Tips


AC Units

Now that you have your new state-of-the-art Air Conditioning unit, here are a few tips to help your unit run stronger and more efficiently for longer, without having to pay a service technician (We find that our clients enjoy it when we can save them money).

Keep Filter Clean

A clogged or improperly installed air filter on your indoor air conditioning unit will increase operating costs and shorten the life of the unit. For detailed filter cleaning information refer to indoor unit literature.

Do Not Block Floor,Wall or Ceiling Vents

When drapes, furniture, toys or other common household items block vents, the restricted airflow lessens the Air Conditioning system’s efficiency and life span.

Do Not Cover or Block Outdoor Unit

The outdoor Air Conditioning unit needs unrestricted airflow. Do not cover it or place items on or next to it. Do not allow grass clippings, leaves, or other debris to accumulate on the sides or top of the unit.And, maintain a 12” (304.8 mm) minimum clearance between the outdoor unit and tall grass, vines, shrubs, etc.

Check Condensate Drain

Your air conditioning unit removes humidity from your home during the cooling season. After a few minutes of operation, water should trickle from the condensate drain of the indoor coil. Check this occasionally to be sure the drain system is not clogged. Drainage will be limited if you live in a very dry environment.

Do Not Operate Below 55°F/12.78°C

Your outdoor air conditioning unit is not designed to operate when outdoor temperatures are lower than 55_F/12.78_C without modification. If operation below this temperature is required, consult your Carrier dealer.

Coil Cleaning

Your indoor coil is located in a sealed cabinet on your indoor air conditioning unit and will require minimal cleaning with routine filter maintenance. Longer operating cycles and reduced energy efficiency mandate the need for a coil cleaning by your Carrier dealer.

Base Pan Drainage

Periodically check for and remove debris that has settled around the base of your outdoor air conditioning unit. This will ensure proper drainage of the base pan and eliminate standing water inside the outdoor air conditioning unit.

Level Installation

Your Carrier dealer will install the outdoor air conditioning unit in a level position. If the support base settles or shifts and the unit is no longer level, be sure to re–level it promptly to assure proper drainage. If you notice water or ice collecting beneath the ac unit, arrange for it to be drained away from the air conditioning unit.

As always, remember the following safety precautions whenever your are maintaining your air conditioning unit:

Disconnect all electrical power to the indoor air handler or furnace before removing access panels to perform any maintenance. Disconnect power to both the indoor and outdoor air conditioning units.


Although special care has been taken to minimize sharp edges in the construction of your unit, be extremely careful when handling parts or reaching into the unit.

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