Before you call a technician

by forceda on September 20, 2014

  1. Is the thermostat set correctly? Take a moment to make sure that it is set either to heat or cool, and that the system is set to “On.” Many systems have a built-in delay, so wait a few minutes after making an adjustment to see if the system comes on.
  2. Make sure all windows are closed. During the time of year where you alternate between running your heating and cooling system and opening your windows, it’s easy to miss one.
  3. Check your thermostat batteries. Some thermostats have batteries to do a variety of tasks. It is a good idea to change your thermostat batteries when you change the batteries in your smoke and carbon monoxide detectors. You might see an indicator on the display (something like “batt”) when the batteries are low. If you’re not sure how to get to the batteries (or if your thermostat has them at all), have the technician show you at your next maintenance visit.
  4. Check your airflow. Have you rearranged furniture? Did the kids build a fort over the air return? If a decrease in your HVAC system’s airflow concerns you, make sure something is not blocking your supply or return air registers. It’s also a good idea to make sure your filter is clean or replaced with a new one.
  5. Check the fuse box. Resetting the breaker may be all you need to do to get your HVAC system running. But be careful with this one, if it happens repeatedly a technician should be called to check your heating and cooling system.
  6. What is the temperature outdoors? Most air conditioners are designed to cool the air about 20 degrees. On a very hot day, your air conditioner may struggle a bit to keep up. Just be patient and try to avoid activities that would add more heat to the house.
  7. Check your filters especially if you are in a newly constructed home. The construction process can be very dusty and dirty and can clog your filters causing problems with air flow and your system running properly.

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