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Why Does My Air Conditioner Keep Blowing Fuses?

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One of the most aggravating—and rather common—issues with cooling systems involves the AC system tripping the breaker or blowing a fuse in the electrical control box when it cycles on. Repeatedly running the fuse box and changing the fuse is not only cumbersome and time-consuming, but likely also a sign of a greater problem with your cooling system or your electrical circuits.

This type of problem is not something you want to fool around with yourself! When it comes to HVAC electrical problems, you want a skilled HVAC technician.

Have questions about your AC system? Call Michael Bonsby Heating & Air Conditioning at 240-342-6910 or contact us online to get help from one of our experts!

Common Reasons Your AC Fuses Keep Blowing

There are a number of reasons why your air conditioning system keeps blowing a fuse. Some of the most common problems are:

  • Low refrigerant. If the refrigerant level is low, your AC system has to work harder. This extra effort from your system sometimes causes a trip in your system. If the refrigerant is low, you could have a leak, which can be dangerous. If you think this is the case, you’ll want to call for AC repair quickly.
  • A problem with your fuse box, your circuit, and/or your central power supply. The most logical cause of your air conditioner tripping a breaker or blowing a fuse when it comes on stems from a problem with the electrical connection, the power supply, or the circuit that powers the system. Breakers and fuses are designed to trip or blow when too much voltage is sent through the line. Simply inserting a larger fuse is a recipe for disaster. You need to have a licensed technician get to the root of the problem to prevent any electrical overloads.
  • An issue with your cooling system’s capacitor. The capacitor is a part of the cooling system’s condenser. This small part helps to even out and regulate the electrical current as it flows through the condenser. A problem with this easy-to-replace part is another reason for blown AC fuses.
  • Extreme temperatures and a dirty filter. A third possibility is that high demand (i.e. high temperatures) is forcing your system to work harder to push conditioned air through a dirt-clogged HVAC filter, which in turn is putting extra pressure on the system and blowing the fuse. Occasionally, a dirty condenser coil can have a similar effect. It’s best to schedule AC maintenance at the beginning of the warm weather season to avoid any such problems.

Not sure why your air conditioner keeps tripping your breaker? Call us at 240-342-6910 or contact us online to talk to one of our HVAC technicians!

Have an Air Conditioner Fuse Issue in Maryland or DC? Michael Bonsby Heating & Air Conditioning Has the Solution!

Having your air conditioner fuse blow repeatedly is frustrating and keeps your system from cooling your home properly. At Michael Bonsby Heating & Air Conditioning, we’ve been helping Maryland and Washington, DC homeowners like you solve air conditioning problems like these for more than two decades.

Call us at 240-342-6910 for an AC inspection or repair in the DC or Maryland area!  

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