Blog

Grinding, Clicking, and Banging: 6 Sounds You Don’t Want to Hear

Bang! Clack! Hiss! Any noise that you notice your commercial air conditioning unit making is not good. The AC repair St. Cloud specialists have put together a guide to help you figure out just what that odd noise may mean.

Banging
Whether it’s your refrigerator, your washing machine, or your commercial air conditioning unit, banging is never a good sign. It often indicates that something within the system is broken or loose. Turn your system off immediately and call a professional.

Buzzing
Anything from loose wiring to the condenser fan motor to the circuit breaker can cause buzzing. If you hear buzzing, you can assume it’s an electrical issue. All electrical issues are best left to the professionals to handle.

Clicking
Clicking isn’t necessarily a reason to freak out; it could just be a normal part of operation. But clicking that is ongoing or constant could be a warning sign that your thermostat is failing or that a control is defective. Since clicking often indicates an electrical issue, it’s best to call a professional when you hear this noise.

Grinding
If you think your commercial air conditioning unit is making a grinding noise, it’s most likely an issue with the air handler, which is the part responsible for circulating air throughout your business. Moving air can cause friction, so the air handler will most likely need to be lubricated to help the bearings run more smoothly.

Hissing
Hissing means one thing — air bubbles in the refrigerant line. This can be a very serious issue as it often means there’s a leak somewhere. Since your commercial air conditioning unit relies on refrigerant to operate, a leak can deplete the unit’s refrigerant supply, causing your unit to break down.

Screeching
If you hear a screeching sound the entire time your commercial air conditioning unit is running, there’s an issue with the fan motor. If you only hear the noise when your unit first starts up, there’s an issue with the compressor. In both cases, these parts will need to be replaced.

If you notice your air conditioning unit making any sort of odd noise, it’s probably time to call in a professional to take a look. The AC repair St. Cloud specialists at All Temp can help diagnose your units problem. Contact us online, or give us a call toll-free at (844) 695-2900.

Posted in Uncategorized