HVAC Knowledge

Fire & Ice is always available to give you expert advice
if you are experiencing any problems with your HVAC system.


Listed below are just a few reminders of things you can check on your own if you are experiencing any problems with your heater or air conditioner.

Air Conditioning Equipment Checklist:

  • Check to make sure that your thermostat is set in the "cool" position.
  • Ensure that your outdoor air conditioning (condensing unit) is running:
    1. Check the circuit breakers in the circuit breaker box (or electrical panel), most likely mounted to an outside wall in the back of the house. Are they in the "On" position?
    2. Check the outdoor unit "disconnect switch" to make sure it is in the "ON" position. The disconnect switch is located near the outdoor unit. (Typically a grey 8" wide x 16" high x 4" deep box mounted to the wall).
    3. Ensure that the blower motor in your furnace is running. (If the thermostat is in the "cool" position, the furnace blower should be running.)
  • Be sure that you have changed your filter in the furnace recently. 
  • An extremely blocked filter can cause your outdoor air conditioner unit to shut down due to lack of proper airflow.
  • Your filter should be changed frequently.
  • Check all return air grilles to make sure they are not blocked by furniture. 
  • Check all supply air registers to make sure they are open and blowing air. (The return air grilles are normally located on your walls and are wide and flat).

Gas Furnace Equipment Checklist:

  • Check to make sure that your thermostat is set in the "heat" position
  • Make sure that the temperature setting on the thermostat is set above (or higher than) the indoor temperature showing on the thermostat. (This tells your heating system that it should provide heat!)
  • Ensure that there is power to the furnace:
    1. Try turning the fan to "ON" using the fan switch on the thermostat to test for power to furnace.
    2. Check the circuit breakers at the electrical panel to make sure they are in the "On" position.
  • Replace the furnace filter if needed
  • Your filter should be changed frequently.
  • Check all return air grilles to make sure they are not blocked by furniture.
  • Check all supply air registers to make sure they are open and blowing air. (The return air grilles are normally located on your walls and are wide and flat)
Contact Information
If you have any questions or need help with your HVAC system,
Please call (619) 561-8100 or provide your information below and will be happy to help!

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