What to Do When Your Furnace Fuse Is Blown

Many homeowners think that a blown fuse or a tripped breaker may not be a big deal, but in reality, it is not something to avoid. If you experience a series of blown furnace fuses, it becomes vital to address the issue; because there is a chance of complex failures that everyone wants to avoid. Calling for professional help in the cases of frequently blown furnace fuses is very important to eliminate the problem.

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How to Differentiate that your Furnace Fuse is Blown?

The first thing is to ensure that you are dealing with a blown furnace fuse before running to the store. It is simple to check the furnace fuse, and in just a few minutes, you will know. The first step is to turn off the electricity at the main panel or the subpanel for your furnace. In any fuse, whether a glass display window or a plastic one, the wire used inside will be the same, and if the wire is broken- it means that the fuse is blown.

You can also use a multimeter to check the fuse by determining the resistance. Zero ohms of resistance indicates a good fuse, and if there is no reading, it means the fuse is blown. It is easy to replace your furnace fuse but make sure that the new one has the same wattage ratings as the previous one. After this, you can go to your owners’ manual and follow the instructions on- how to replace the fuse properly.

What Would Cause your Furnace Fuse to Blow?

A little knowledge of your furnace and its parts won’t hurt but will help you identify the problem sooner and get a solution. Here are some of the reasons behind the reason why your furnace keeps on blowing fuses.

Damage in Wiring

If there is a loose connection and damage to the wires, it will cause your furnace to blow a fuse or short circuit. In such cases, you should call professionals at Lawrenceville furnace repair to solve your problem instead of trying it yourself.

Dirty Filters

Many homeowners often ignore the air filters, and the dust and debris keep accumulating on the air filters. Such dust and debris can cause the blower motor to overheat and the fuse to burn out.


If, by any possibility, your fuse comes into contact with even a few drops of water from another source, it can blow. And cause you troubles that are hard to deal with.

Faulty Components

Your blown furnace fuse can be a sign of many serious problems with your furnace. If there is a fault in the transformer or the thermostat is not working optimally, it can cause your fuse to blow frequently.

Let Faith Mechanical, LLC take care of your furnace and offer you the best furnace repair Lawrenceville, Ga. Our experts are always available to take your worries away; you can call or text us at (678) 889-2333, and we’ll be there for you in minutes. You can also apply for financing and promotions on our website.