Unit Maintenance

Properly maintained heating and cooling systems will improve each unit’s efficiency and prolong their life.  By performing the following maintenance annually or monthly, you will spend less time and money repairing your system in the long term.

Air Conditioner

  • Clean or replace air filters
  • Check evaporator coil and clean as necessary
  • Straighten any bent coil fins using a fin comb
  • Clean debris and leaves from the fan, compressor, and condenser of a split system
  • Pass a stiff wire through drain channels to prevent clogs
  • Inspect window seals of window air conditioners to ensure they are sealed properly

Heating System

  • Clean filters monthly and replace regularly
  • Clean the heat exchanger and remove dirt, soot, or corrosion
  • Inspect air ducts and heating pipes to ensure that they are properly sealed
  • Remove any obstructions from air vents, baseboard heaters and radiators

Find the Problem Yourself

There are many common problems that could occur while running your air conditioner or heating system. Before calling an HVAC professional, there are a few things you can do to diagnose or correct the issue.

If your A/C unit isn’t keeping you cool…

  • Refrigerant level may be low or leaking; call a repair technician to recharge the system or repair the leak
  • The thermostat sensor could be knocked out of place; gently bend the wire to position it properly
  • A thermostat issue could be determined by gauging whether your AC’s thermostat is set properly and reading the correct temperature; if not, call a repair technician to repair the system
  • Check your system’s drain to ensure that it is not clogged; if it is, you could try and unclog it on your own or call a technician
  • A dirty or clogged filter will restrict your system’s airflow, which will decrease its efficiency; change the filter to increase your system’s ability to effectively cool air

If your A/C unit  or heating system will not turn on…

  • An electric control failure could occur in an A/C unit if your compressor and fan controls are worn due to the system being tuned off and on too frequently; contact a technician to check the unit’s electrical connections
  • A broken thermostat may require new batteries or a complete replacement

If your A/C unit or heating system has limited airflow…

  • You air ducts could be leaking air or be clogged or constricted; call a technician to clean and reseal your ducts
  • A dirty or clogged filter will restrict your system’s airflow, which will decrease its efficiency; change the filter to increase your system’s ability to effectively cool air

If you have any issues or feel uncomfortable maintaining or repairing your system yourself, please do not hesitate to contact a professional technician at West Coast Heating, Air Conditioning and Solar to assist you!


Information taken from the U.S. Department of Energy website