3 Problems You Can Troubleshoot On An Electric Furnace
While your initial instincts might be to call an HVAC repair technician when your electric furnace breaks down, you might want to consider troubleshooting the problem yourself. A lot of basic problems are fairly easy to repair by yourself, and can save you from a costly service call.
Intermittent Blower Power Cycling
If you notice the blower is turning off and on often throughout the day, start by investigating your furnace's air filter. If the blower is starting to overheat due to insufficient airflow, the safety mechanism will have it turn off temporarily until the temperature of the motor goes down. Replace the filter, and the motor will have a better chance at cooling down before it gets too hot.
Blowers that fail to power on completely could be caused by a faulty thermostat. Make sure to change the thermostat's batteries, properly set your temperature settings, and see if that fix does the trick. If not, the relays in the blower may be faulty, and would require professional help to fix it.
Furnace Will Not Start
When a major appliance will not start, always check the fuse box to make sure it did not trip a circuit. A furnace can be a big power draw, and often requires its own circuit in your fuse box. If no other circuits in your home turned off, you may not have realized just the fuse for your furnace was tripped.
Another possibility is that the furnace motor overheated, causing a similar shut down process as an overheated blower. Wait about half an hour after the last time you noticed the motor running to give it time to cool down, and then press the furnace's reset switch.
Due to the amount of moving parts inside a furnace, parts that are loose can cause that rattling you most likely hear. The first thing you will want to do is check the access panel on the furnace, as a loose panel can cause a lot of noise, but it is simple to fix by tightening screws on the door
A noise that originates from inside the furnace is commonly caused by the blower belt. Ordering a replacement blower belt can fix this problem, as old belts tend to become loose over time and cause noise. Lubrication on the blower's motor can also help if it's been awhile since the last time you had your furnace serviced.
If you take the time to troubleshoot these common problems, you will save yourself from calling an HVAC repair technician that could charge you to fix something you could have done yourself. However, if your problem is more advanced than the above issues, contact a professional, such as Allied Mechanical & Electrical, Inc.