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HVAC Troublesooting - Before You Call

How to Check Your HVAC Unit

If your HVAC unit is not cooling or heating, here are some tips for you to check before calling for service.

  • Check the thermostat.  Is the display on, and is it set on the desired mode of cool or hot?
    • If there is no display, check the main panel breaker and also the switch near the air-handler unit in the attic or closet space.  The switch looks like a light switch, and someone may have bumped it and turned if off, or thought if was for a light fixture and turned it off.
  • Check the breaker at the main panel box, generally labeled HVAC.  Make sure it is on.
  • Are your filters clean?  It is recommended that air filters be changed every 60 days.  This will not only help keep your home’s air cleaner, it will allow the unit to run more efficiently and lower your electric bill.
    • Dirty filters can cause your HVAC unit to freeze up by causing ice on the condenser coils (on the outside unit).  Replace the filters, turn the unit off for several hours and allow it to thaw.  Turn the unit back on and determine if it is running properly.

Note:  if a service call is required because of dirty filters, you are responsible for the service fees.