Troubleshooting Tips For A Furnace That Isn’t Blowing Hot Air

Maintaining your furnace and heating system is essential to prevent emergency breakdowns. There are many benefits to professional maintenance services, which include a better efficiency and longevity of your system.

If you are a resident of Blythe and require further information about furnace repair in Blythe, contact Johnson Refrigeration Inc

Troubleshooting tips for a furnace that isn't blowing hot air

A furnace might blow cold air for many reasons, which are listed below.

  • Thermostat Problems

Your heating system may occasionally stop working for reasons other than the furnace. Your thermostat may be the main reason behind it. You may fix several thermostat issues on your own without seeking expert assistance.

If your thermostat’s batteries run out, they will stop functioning. It’s possible that someone in your house reduced the thermostat’s setting. Ensure that your thermostat setting is correct.

  • Burner Issues

Your furnace’s burner is susceptible to dirt and debris. The gasoline won’t get through if it gets plugged in. The air that your fan blows will still be functional but frigid. Make sure your burner is clean as a solution to this issue.

You can learn how to do this yourself, but the best advice is to hire Johnson Refrigeration Inc for heater repair in Blythe CA, to perform a thorough cleaning.

  • Dirty Filters

The furnace may not be blowing hot air due to a dirty or clogged filter, which inhibits airflow to the HVAC system. Your furnace will have difficulty producing and distributing warm air within your home.

As a result, changing the filters is important. The greatest part is that you can do it yourself and don’t need to hire an expert. Refer to the handbook or seek online assistance if you have any questions.

  • Condensate Lines Problems

Regular maintenance is needed for the condensate. Your HVAC system’s condensing unit constantly drops water into a drip pan while running in hot weather.

This water is released through pipes and drains and sent outside your house. Your float switch will trigger if these lines get blocked with dirt and debris, shutting off your system.

  • Source Issues

Many people frequently fail to examine the furnace’s fuel source when a furnace stops producing hot air. Before consulting us, check the fuel supply to see if your furnace is having issues.

Make sure there is oil in the tank if you have an oil-powered furnace. Make sure the switch at the breaker panel is turned on for electric furnaces. Make sure the gas supply valve is open if using a gas-powered furnace.

  • Leaky Ducts

The ducts that distribute your heated air throughout the house are prone to deterioration over time. Extreme temperature swings that are exposed to the ducts might result in weak areas and leaks in the ducting. If there is a leak, cold air will enter the ducts, and hot air will escape. It needs to be repaired.

  • Faulty Flame Sensors

Your furnace may be emitting cold air due to an outdated or dirty flame sensor. The burner will repeatedly turn off if the sensor is clogged with dirt or isn’t functioning correctly. Get in touch with Johnson Refrigeration Inc for heating services in Blythe, CA.

  • Pilot Light Problem

If your home has a gas-powered furnace, you will see a pilot light like one on a gas stove. Your pilot light going out might be caused by emergency work on the pipes or recent maintenance that you received from the gas provider. An older furnace often has a malfunctioning pilot light that needs to be replaced by our technician.


A broken furnace can happen for several reasons. While some are simple and may be resolved by a homeowner, others need expert assistance. Therefore, if you are looking for furnace service, get in touch with Johnson Refrigeration Inc. immediately and receive the top-notch services you deserve.