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Grinding, Squealing and Screeching: Interpreting the Noises Your HVAC Makes

If something is failing or going amiss with your HVAC unit, chances are, your HVAC unit is letting you know something is not quite right. However, most of the cues come in the form of sounds that many of us may overlook. If you hear your HVAC unit grinding, squealing, screeching or squeaking, it is letting you know it needs help. I was unaware of these cues and overlooked them. It ended up costing me a lot of money in repairs. I want to make sure that does not happen to other people, so I made this website. I hope you learn how to interpret the noises your HVAC unit is making so you can get it the repairs it needs before you incur a costly repair, or worse, permanently ruin your unit for good.

Grinding, Squealing and Screeching: Interpreting the Noises Your HVAC Makes

Air Conditioning Repairs Needed When Your AC Blows A Fuse In The Disconnect Box

by Billie Carlson

When your air conditioner stops working, you might immediately start thinking about the major parts that go bad and how expensive the repairs could be. However, sometimes, problems with an AC are minor and relatively inexpensive to repair. An example is the fuse in your air conditioner.

The fuse is a small, inexpensive part, but if a fuse blows, your AC won't get power, so it won't run. Here's some information about the fuse in your air conditioner and how an air conditioning repair technician can replace the fuse when it blows.

The Purpose Of An AC Fuse

The fuses in your air conditioner are located in the disconnect box near the condenser outdoors. The power from the circuit breaker in your electrical panel goes to the disconnect box and through the fuses on its way to the condenser. If there is a power surge or some other electrical problem, one or more fuses can blow, and when that happens the power to your condenser stops. In this way, the fuse is a protective device for your AC.

The Reasons An Air Conditioner Fuse Blows

There could be a power surge in the electrical panel or circuit that overloads a fuse so it blows. The problem could also be in the wiring going to or from the disconnect box. There might also be a power problem inside the condenser that causes a fuse to blow, such as a malfunction with a capacitor.

AC fuses often blow during the hottest days of the year when your air conditioner has to struggle to run and cool your house. Restricted airflow, such as what happens when the filter is coated with dust, can also cause a fuse to blow.

Air Conditioning Repairs Needed When A Fuse Blows

An air conditioning repair technician can fix a blown fuse by replacing the bad fuse with a new one. This is a simple task, but it must be done carefully since the repair technician has to work around electrical parts and wiring. It's best to turn off the power at the electrical panel to be safe. The fuse has to be replaced with an exact duplicate, and then power should be restored to your air conditioner.

However, that may not be all that's needed. The air conditioning repair technician has to understand why the fuse blew. If there's a problem with the wiring in your AC, the problem has to be fixed or the new fuse will go bad too. The repair technician may need to use a multimeter to test and track down the source of the problem so the right air conditioning repairs can be done to keep the new fuse from blowing out.

For more information on air conditioning repair, contact a professional near you.