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 HVAC & Plumbing 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.

Whether you’re experiencing any of the above issues, or your Maryland or DC air conditioner is tripping breakers for any other reason, reach out to Michael Bonsby for superior AC repair. Call 240-342-6910 or reach us online!

Why Choose Michael Bonsby for AC Repair?

Here in Maryland, going without dependable home cooling just isn’t an option. Michael Bonsby is a professional AC company with technicians who understand electrical complications are among the most frustrating and dangerous of all air conditioner issues! This is why we act fast to provide prompt, precise air conditioner repair services.

When you call on our team you can expect these advantages for every service:

  • Licensed, certified, and experienced HVAC contractors
  • Award-winning service—we’re top rated with the Home Services Review!
  • Prompt service that focuses on providing you with precise, cost-effective solutions

If you need help troubleshooting AC short-cycling or AC breaker tripping and fuse blowing in Maryland or DC, call 240-342-6910. You can also contact us online to schedule AC repair

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

Frequently Asked Questions

Can I DIY Fix a Blown AC Fuse or AC-Related Breaker Trip?

Electrical issues should be handled by a professional for safety reason. Still, there are steps you can take to troubleshoot an air conditioner that keeps tripping a circuit breaker:

  1. Replace your air filter – A restriction in airflow caused by a clogged air filter will force your cooling system to struggle, which often leads to overheating and potential breaker trips. If your air filter is visibly dirty or hasn’t been changed in a while, do it now.
  2. Clean all supply and return vents – Keeping your air vents free of dust and debris is important for the same reasons we stated above. Additionally, be sure that no furniture, carpets, or window curtains are blocking vents.
  3. Check your outdoor unit – The fins that surround your outdoor unit can also become clogged, usually with grass clippings and leaves. Clean these away using a firm brush, and you can also straighten any bent fins with a slim tool.
  4. Reset your breaker – Once all of the above tasks are done, go ahead and reset your breaker (or swap your fuse, if your electrical system is older). If one of the listed potential causes was the culprit, your AC should run just fine from now on.

Unsure if a DIY repair is right for you? Call a professional! We’ll diagnose the reason your air conditioner keeps tripping the circuit breaker and let you know what your AC repair/replace options are. Schedule AC repair service online or call 240-342-6910!


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