Just when you need the AC to work, you hear clicking, clanging, and other odd noises coming from the unit. There are many reasons why these sounds are emanating from the system. Here are the top five noises that warrant a call for air conditioner repair.

When to Schedule Air Conditioner Repair or Replacement

1. Banging & Clanking

Typically, banging and clanking means something is loose or broken. Anything from a piston pin to an unbalanced indoor blower can be the culprit. More severe banging and clanking can indicate that the compressor is loose and you may need a new one.

2. Buzzing

Buzzing can mean a number of issues. Anything from loose parts and debris in the unit to condenser coils that need cleaning can cause this noise. Other possibilities include a dirty air filter or a failing fan motor and compressor. Buzzing or humming may point to electrical issues, as well. 

3. Clicking

If clicking continues after startup, the system may have a defective control or an electrical issue inside the unit that requires air conditioner repair. Consistent clicking may also be the result of thermostat trouble or a defective relay.

4. Squealing & Rattling

In some cases, the belt that connects the motor to the blower slipped or other components in the fan motor are wearing down. The blower may also be breaking down, which means you’ll need a replacement. Sometimes, there may just be debris inside the unit that is causing the rattling.

5. Screaming

Any high-pitched screaming or whistling can be dangerous. Immediately turn off the unit and call a professional. These noises are usually the result of a refrigerant leak, which is detrimental to the system and your health. If it’s not the refrigerant, there may be too much pressure inside the compressor, which is also dangerous. 

 

Serving Chillicothe, OH, and surrounding areas for more than a decade, the HVAC contractors at Combs Heating & Cooling will help when your AC is making strange noises. Their technicians are fully licensed and insured and can safely diagnose the problem. They offer heating, furnace and air conditioner repair as well as emergency HVAC services. Call (740) 772-2233 for a free estimate on a new system or visit their website for more information about their services.