A man fixing an electric furnace with the words "Electric Furnace Troubleshooting"

When your electric furnace stops working in the dead of winter, it can be rather inconvenient. The issue may be major and costly, or it could be something simple that you may be able to fix yourself. Here are some troubleshooting tips that can help you figure out what’s wrong with your electric furnace:

1. Your Electric Furnace Won’t Turn On

Before you call a heater technician for a furnace that won’t turn on, it’s a good idea to make sure that the problem isn’t easily solvable. Oftentimes, the issue is as simple as a unit that’s turned off, a tripped breaker, or a blown fuse.

Make Sure the Unit is On

Sometimes the issue is as simple as your electric furnace being off. Perhaps you went on vacation and turned it off, and you simply forgot to turn it back on. In other cases, a power outage may have caused it to turn off, and it simply didn’t turn back on once power was restored. Check your furnace for a reset button, and see if pressing it fixes the issue.

Check for Tripped Breakers

Occurrences such a power outage or power surge may trip your breaker. Check your furnace’s breaker and turn it back on if it’s been tripped. Of course, if your electric furnace keeps tripping the breaker, this is likely a sign of a bigger issue.

Look for Blown Fuses

Your electric furnace’s fuses will eventually burn out. If you examine them and find that one or more are burnt or broken, replacing them may be all you need to do to fix the issue.

If you try all of the above and your electric heater still won’t turn on, then it’s time to call in an experienced heater technician.

2. Your Furnace Produces Little to No Heat

If your electric furnace is running but doesn’t seem to be producing enough heat, it could be caused by the thermostat being on the wrong setting, a clogged filter, dirty air ducts, or a major issue with the furnace.

Try Adjusting your Electric Furnace’s Thermostat

Electric furnaces have their own thermostat that dictates how much heat they’ll produce. Sometimes, their thermostats are simply set too low. Try raising the thermostat 3-5 degrees (Fahrenheit), and then see if your heater starts producing enough heat.

Check your Furnace’s Filter

Your furnace’s filter needs to be cleaned or replaced every so often. If you check the filter and it’s clogged with dust and debris, then a simple replacement/cleaning may be all you need to do.

Examine the Fan and Blower

A lack of heat coming from your furnace may be due to a fan that won’t turn or a broken blower. These issues are usually not DIY fixes.

Other common issues that prevent your home from heating up include a faulty heating element or dirty air ducts. These issues – or any other major issues with your electric furnace – should be taken care of by a licensed heater technician.

3. The Blower Won’t Stop Running

A blower that won’t stop running is often caused by one of two issues: your thermostat on the wrong setting or a faulty relay.

Make Sure the Thermostat is on the Right Setting

If the blower won’t turn off, it could simply be that your thermostat is set to ON instead of AUTO. Check the setting on your thermostat and see if you need to adjust it.

Call in a Professional if that Doesn’t Work

The other common cause of a blower that won’t turn off is a faulty relay. This is definitely not a fix that you should try to do yourself.

4. Your Electric Furnace is Noisy

A noisy furnace may be due to something as simple as a loose access panel or something more complex such as a problem with the belt.

Check the Access Panel

Over time, your electric furnace’s access panel may come loose. If it seems like the banging is due to this issue, try tightening the bolts on it and see if that works.

Examine the Belt

Your furnace has a belt that helps it run. Oftentimes, a noisy electric furnace is caused by a belt that’s loose, has come off, is unlubricated, or is broken. You may be able to fix the issue yourself – just make sure to turn your furnace off first.

If you’ve tried one of the simple steps outlined above and your electric furnace is still not working right, it’s time to call in Cote’s Mechanical. Their licensed and experienced heater technicians will discover the cause of the issue and get it fixed for your promptly.