Furnace Repair Brampton

Electric Furnace Repair Troubleshooting Tips

electric furnace repair troubleshooting

When winter arrives, that’s when an electric furnace earns its keep. Keeping your home warm and cozy is a must-have for every household during the cold winter. But what do you do if something goes wrong with your electric furnace? It’s always essential to take quick action when repairing or troubleshooting any mechanical issues with your heating system, as delays can lead to bigger problems down the line.

In this blog post, we’ll look at some common issues associated with electric furnaces and provide tips on solving them quickly. Keep reading to learn more about diagnosing, repairing, and troubleshooting various electrical furnace problems!

No Heat

No heat from your electric furnace can be a frustrating problem, especially during colder months. It can make your home or office uncomfortable and reduce productivity. However, there are many possible causes of this issue.

Causes of No Heat Issue

Thermostat Malfunction: The thermostat plays a crucial role in regulating the temperature of your electric furnace. However, a malfunctioning thermostat can cause your furnace to stop producing heat. Some common reasons for thermostat malfunctions are wiring issues or a faulty thermostat sensor. If you suspect the thermostat is the problem, you can check it by setting it to a higher temperature and monitoring if the furnace produces heat. You may need to replace the thermostat if there is still no heat.

Circuit Breaker issues: The electric furnace will not work if the circuit breaker trips. You can check if the circuit breaker is the issue by going to your electrical panel and seeing if the switch that controls the furnace is turned off. If it is, flip it back on and check if the furnace produces heat.

Filter Blockages: A dirty filter can block the airflow, and as a result, it can cause the furnace to stop producing heat. If you haven’t replaced the filter for a long time, or it seems dirty, it’s time to replace it.

Troubleshooting Steps for No Heat Issue

Thermostat Malfunction

  • Check the thermostat wiring and make sure it is correctly connected
  • Replace the thermostat batteries
  • Clean the thermostat sensor
  • If these steps don’t work, you may have to replace the thermostat altogether.

Circuit Breaker Issues

  • Check for tripped circuit breakers
  • Reset the circuit breakers
  • If the issue persists, seek a professional electrician’s help.

Filter Blockages

  • Check and replace the air filter
  • Check the ducts for debris and clean them if necessary
  • If cleaning the ducts doesn’t work, it may be time to replace them

Not Enough Heat

An electric furnace that produces some heat but not enough is a common problem that many homeowners and businesses encounter. Several factors can contribute to this issue, including problems with thermostats, filters, and blowers.

Causes of Not Enough Heat Issue

Thermostat Issues: Sometimes, the thermostat may not be calibrated correctly, leading to issues with the electric furnace’s heating capacity.

Dirty Filter: A dirty air filter can restrict airflow, causing the electric furnace to work harder and not produce enough heat.

Blower Issues: If the blower motor is malfunctioning or not working optimally, it can affect the electric furnace’s heating capacity.

Troubleshooting Steps for Not Enough Heat Issue

Thermostat Issues

  • Check the thermostat’s calibration and adjust it if necessary
  • Clean the thermostat sensor
  • Replace the thermostat if it’s faulty

Dirty Filter

  • Check the air filter and replace or clean it if necessary
  • Check the air ducts for blockages and clean them out
  • Consider replacing the ducts if the issue persists

Blower Issues

  • Check the blower motor and replace it if necessary
  • Check the blower’s bearings and lubricate them if necessary
  • Check the blower belt and replace it if needed

Constant Cycling On and Off

Constant cycling on and off is a common problem with electric furnaces that can affect their performance and efficiency. This issue occurs when the furnace turns on and off frequently, which can cause a significant increase in energy bills and even damage the system over time.

Causes of Constant Cycling On and Off Issue

Filter Issues: A clogged or dirty filter can cause the electric furnace to overheat, leading to constant cycling on and off.

Thermostat Issues: A malfunctioning thermostat can cause the electric furnace to turn on and off more frequently than necessary.

Limit Switch Issues: If the furnace’s limit switch is faulty, it can cause the system to shut off prematurely, leading to constant cycling on and off.

Troubleshooting Steps for Constant Cycling On and Off Issue

Filter Issues

  • Check the air filter and replace it if required
  • Ensure that the filter is clean and does not have any blockages
  • Clean the ducts and check them for any debris buildup

Thermostat Issues

  • Check the thermostat’s calibration and adjust it if necessary
  • Replace the thermostat if it is faulty or malfunctioning
  • Check the wires connecting the thermostat and furnace

Limit Switch Issues

  • Check the limit switch and ensure that it is working correctly.
  • Replace the limit switch if it is damaged or not functioning correctly.

Loud Noises

If your electric furnace makes loud and unusual noises, it can be a significant concern for homeowners or businesses. These noises could indicate a problem with the furnace’s blower or motor.

Causes of Loud Noises

Blower Issues: A loose, unbalanced, or damaged blower wheel can produce rattling or banging noises in the electric furnace.

Motor Issues: A worn-out motor can produce a grinding or squealing noises when trying to run the fan and blower.

Troubleshooting Steps for Loud Noises

Blower Issues

  • Turn off the power supply to your electric furnace and remove the access panel to check for any loose blower wheel or debris inside the blower wheel.
  • Tighten the screws or bolts that mount the blower wheel to the shaft if required.
  • If the blower wheel is severely damaged or broken, replace it with a new one.

Motor Issues

  • Turn off the power supply to your electric furnace and remove the access panel to check the motor for any signs of wear and tear
  • Check the motor bearings and lubricate them if necessary.
  • If the motor is too old or damaged, consider replacing it with a new one.


Electric furnaces are an essential part of heating systems in many homes and businesses, but they can encounter issues from time to time. This article has provided detailed troubleshooting tips for some of the most common problems electric furnaces experience, including no heat, insufficient heat, constant cycling on and off, and loud noise issues. It’s crucial to regularly inspect and maintain your electric furnace to ensure it functions efficiently and effectively.

If you are experiencing issues with your electric furnace, you can take some steps to troubleshoot and fix the problems. Check the thermostat, filter, circuit breaker, and blower, and ensure they are clean and functioning correctly. If you’re uncomfortable performing any of these checks or the problem persists, it’s essential to seek professional help. A qualified HVAC technician can diagnose and repair your electric furnace and ensure it runs safely and efficiently for years.