How To Tell If an AC Fuse Is Blown in Clayton, Ohio

Located minutes away from the sprawling Sycamore State Park, Clayton is a small but charming city with surprisingly scorching summers. If your air conditioner kicks the bucket on one of those sweltering summer days, it could be something as simple as a blown fuse, so it pays to recognize the signs.

Below, learn how to tell if an AC fuse is blown. You can always call Butler Heating, Air Conditioning & Plumbing for AC services in Clayton, OH.

Understanding the Role of Your Air Conditioner’s Fuse

Before troubleshooting your air conditioner’s fuse, it’s helpful to know what this piece does for your cooling system. The fuse is a safety device designed to protect the air conditioner from electrical overloads and short circuits. Technically, it does this by blowing itself up.

If there’s a power surge or short circuit, the fuse will detect it and blow. This breaks the circuit, stopping the flow of electricity from reaching your air conditioner. Dealing with blown fuses can be annoying, but it’s far better than incurring costly repairs.

How To Tell if AC Fuse Is Blown: Blown Fuse Symptoms for Clayton Homeowners

How can you tell if your air conditioner’s fuse has blown? Homeowners in Clayton can look for these blown fuse symptoms:

AC Not Turning On

If a cooling system fuse has blown, one of the first signs you’ll notice is the unit’s inactivity. No matter how much you adjust the thermostat, the air conditioner won’t switch on because it has shut down to prevent further damage.

There are many other possible reasons why your air conditioner isn’t turning on, from overheating to faulty components. The best way to diagnose your system is to call an HVAC technician like Butler Heating, Air Conditioning & Plumbing.

Burning Smells

If you happen to be standing near your air conditioner when the fuse blows, you might notice a burning smell that reminds you of gunpowder or fireworks. The odor should go away within a minute or two. 

If the smell doesn’t disappear, you may have an electrical fire somewhere in the system. Call the fire department and leave your Clayton home right away.

Frequent Breaker Tripping

Wondering how to tell if an AC fuse is blown? If your air conditioner frequently trips the breaker, there’s a chance that you have blown a fuse somewhere.

Your air conditioner can repeatedly trip the breaker if it’s the wrong size for your home or the system is drawing more power than the breaker can provide. For example, if your system needs 30 amps but is connected to a 20-amp breaker, you’ll end up with frequent shutdowns.

Damaged components and faulty wiring can cause frequent breaker tripping, too. An HVAC professional can give you the options after an electrical panel check, including an upgrade.

The Air Conditioner Only Blows Warm Air

When a fuse blows, the air conditioner will usually stop working entirely. In some cases, though, you may still feel warm air blowing through your vents. This indicates that the fuse in your outdoor unit has blown, which means the condenser isn’t receiving the power it needs to cool the air it’s circulating.

If your system still runs but only blows warm air, call for a fuse replacement!

Multimeter Testing

The only surefire way to know whether your fuse has blown is to test it with a multimeter. To do this, the technician will:

• Open the panel on your air conditioner.
• Locate the fuse on the control board. 
• Touch the multimeter to the probes on your system. 

If the multimeter makes a loud beeping noise, your fuse is still in good shape. If not, the fuse will likely be shot, and you’ll need a new one. A multimeter check is quick and easy, so contact our HVAC team for assistance anytime.