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When the first frost of winter arrives, it can be rather startling for inhabitants of Southern California. When it comes time to turn on the heater for the first time in months, you may encounter some difficulties. Some people have reported that their heater is not working even when the thermostat is turned on. There are several possible explanations for this. Here are some suggestions for what to do if your heater stops working.

 

Reasons Why Furnaces Aren’t Producing Heat

Furnaces manufactured after the 1990s include a safety switch or safety shut out. This safety switch is critical to the overall health and safety of your home and HVAC system.

For example, if the safety switch detects that gas is being fuelled into your furnace without being ignited, the system will be turned off. It will also turn off your system if it detects a carbon monoxide leak or if it becomes too hot.

If the safety switch is tripped, you will be unable to turn on your HVAC system until it has been inspected by a professional, regardless of the setting on your thermostat.

If your thermostat is fully operational but you still don’t feel any heat coming from the vents, you could be experiencing one of the following issues:

  • Dirty evaporator coils
  • Clogged pipes
  • Full air filters
  • Broken wires
  • Burnt control board
  • Dead blower motors

When the entire system refuses to start, homeowners require the expertise of their favorite HVAC contractor for further diagnostics on a heater that is not working.