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A-Avis Home Services Plumbing, Heating & Air Conditioning, Inc. Blog

Possible Causes of Furnace Shutdown

Most homes in Riverside, CA use gas-fed furnaces to keep warm in the winter. Ours is a warm climate and gas furnaces provide effective and inexpensive ways to heat the home when temperatures drop. That doesn’t mean it’s not a problem when you turn the heat on and nothing happens. It usually means the heater has a serious problem that needs solving. Shutdowns occur for a large number of reasons; some of which can be solved by the homeowner, while others require a skilled technician. You can do a little troubleshooting to sort out which is which before you call in a repair service.

Possible causes of a furnace shutdown can include, but are not limited to, the following:

  • An electrical surge triggering the breaker switch. Reset the switch if it’s turned. If the problem recurs, then it’s time to call for repairs.
  • A problem with the thermostat. Thermostats can be easily replaced and many times, the issue may stem from the fact that someone accidentally or inadvertently adjusted the controls. Always check the thermostat before calling in repairs.
  • Faulty components can overheat and blocked air passages can cause a back-up of heated air that will damage components. Most furnaces will shut down automatically rather than risk more damage.
  • Gas leaks. A gas leak is a very dangerous situation, whether it’s the natural gas itself or some offshoot of the heating process like carbon monoxide. Safety features in most modern furnaces will shut off the gas in the event of a leak, and carbon monoxide detectors placed near the furnace.
  • Electrical problems, especially those affecting the ignition switch. Though the furnace is fueled with natural gas, electricity is still used to run key systems. A lack of electricity means a lack of power for the system, particularly if the ignition won’t work. (Otherwise, the heater will just leak unburned gas into your home.)

If repairs are required, you need to move fast. Call the pros at Avis Plumbing, Heating & Air Conditioning, Inc. to get the job done the right way!

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