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Top 10 Causes of Electric Furnace Problems

Top 10 Causes of Electric Furnace Problems

Are you experiencing electric furnace problems? You might have thought that the root problem is the cheap holiday string lights, but it’s not. Don’t worry. We have prepared this guide to electric furnace troubleshooting while explaining the common causes and fixes. Keep on reading!

Clogged Filter

Have you changed your furnace’s air filter? If you haven’t, it might be clogged by now with dust and debris. The dust will end up in your furnace’s blower motor, causing it to overheat, burn out the fuse, and start a fire. You can quickly fix this by replacing the furnace fuse, the air filter and have your system thoroughly cleaned.

Loose Wire

Over time, the vibration from the furnace running can make the internal wires get loose. As soon as it gets too loose, it will cause your furnace to short cycle, making it inefficient and unable to heat your home. Finding the problematic wire might take some time, but replacing the loose wire or fixing it will take care of the problem. To prevent it from happening again in the future, ensure that your system gets regular inspection and tune-ups. Doing so will keep the wires tightened and prevent short cycling.

Contact with Water

Are there any water leaks from the furnace or anywhere nearby? If yes, then electrical problems could happen if your furnace is tucked up in a crawl space. Check for leaks that could be causing the short cycling.

Wrong Fuse

Did you hire a professional to service your furnace? If not, then the person you hired might have put in a fuse that was too small to handle the capacity of your heating system. An expert will spot and solve the problem immediately.

Dirty Fuse

Are you continuously getting your furnace maintained? The parts may be dirty after a few years you’ve discontinued the maintenance. When its fuse gets covered by soot and grime, it might no longer connect sufficiently, causing failure.

Faulty Starting Capacitor

If your system’s capacitor (responsible for starting your furnace) fails, you could get intermittent electrical problems. You can replace the capacitor to fix the problem. Don’t hesitate to contact your local HVAC expert to assist you with your issue.

Bad Blower Motor

A failing blower motor can cause a blown fuse. The strain causes the motor to draw too much electrical power, causing a short cycle. If you’re experiencing this problem, your local HVAC technician will need to swap the motor with a new one.

Transformer Failure

If your home’s electrical system only supports 120 volts, your heating system needs a transformer to convert the correct voltage to run the controls, timers, and ignition. The electric furnace transformer may be failing, causing your system to short cycle. If it does, then you’ll need to call a professional to replace it.

Failing Valve

Are you using a gas furnace? One of its valves might be failing. When a valve is unable to open and close properly, it can sometimes heat up, causing an electrical short that can also blow a fuse.

Electric Furnace Thermostat Control Wire

Did you know that your furnace’s control board has its own separate fuse? Its job is to protect it from getting too hot. If something or someone is poking around your furnace, they could trip the wires, causing the system to short cycle and blow the fuse.

Looking for an expert to solve your furnace problems? Contact us today at A&G Refrigeration to get started. Our technicians will quickly fix your problem!

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