Helping you plan your home improvement project, from start to finish


Electric Furnace Troubleshooting

By on Jul 14, 2014
Electric Furnace Troubleshooting

A problem with your electric furnace can be a serious concern during the coldest months of winter. The idea of paying for a service call may be worrisome as well. Ignoring a problem can lead to an uncomfortable home and posses the risk of further damage. A few troubleshooting steps can be taken before you decide to call in an expert for repairs.

Failure to function

One of the most frustrating issues is the failure of your electric furnace to operate. However, there may be a simple solution. Be sure that power cords aren't unplugged. Check your fuse box to make sure that you don't have a tripped switch. If your furnace has its own switch, try turning it off and on again. You may also want to verify that your thermostat is operating correctly. An old battery can trigger inappropriate responses from your system.

If you find that there are no connection or power issues, allow your system to remain idle for 30 minutes in case there has been a motor overload. Use the reset button, and check for proper operation. You can consult your owner's manual to verify the location of the reset button if you aren't sure.

Short cycling

Short cycling occurs when your furnace turns on and off quickly and repeatedly. One of the most common reasons for the condition is a dirty air filter. Check your filter, and replace it if it is clogged with dust and debris. If you have a reusable filter, wash and dry before replacing it.

Additional issues that could trigger short cycling include problems with the blower. A good cleaning and lubrication of the equipment may be required, and this can be efficiently handled by an HVAC professional. You can also check your thermostat battery to make sure that there isn't a problem with improper commands being sent to your equipment.

Lack of heat

If your system operates but doesn't produce enough heat, you can begin by checking your thermostat. Replace an old battery. Try increasing the temperature setting to improve the heat level. If the lack of heat is accompanied by poor airflow, you should verify that your filter isn't dirty, making a replacement if necessary. Additional issues include blockages in your ducts, closed registers or obstructions such as furniture or rugs over vents.

Electronic components can also lead to poor heat or no heat. A faulty element, for example, is a critical part for proper comfort control. If your initial troubleshooting doesn't produce a resolution, a professional service call is necessary for proper diagnosis.

Furnace keeps running

If your system continues to function for lengthy intervals, you may be dealing with a thermostat problem. First, verify that your thermostat is set to auto rather than on. Check the battery as well, replacing if needed. If these don't correct the situation, you may have a faulty relay, requiring the assistance of a heating technician.

Get up to 4 Free Quotes!

Zip Code
comments powered by Disqus
2016 JDR Industry Blogger Award Winner for Best Microblog