Are you hearing a strange sound coming from your HVAC system? The noise could be a sign that you have an issue with your unit. It is normal to hear an occasional click, but other noises can be a cause for concern. When you hear certain sounds, it’s time to call a professional HVAC company for a visit. Here are some sounds you definitely do not want to hear.

1. Banging or Clanking

If you are hearing loud banging noises, there is a problem with the motor. When something is loose in the unit, you will start to hear a rattling sound. Broken components will make heavy bangs. In any case, you need to call a professional company for a full-service inspection.

2. Screeching

A bad belt can cause screeching that may be intermittent but severe. While this is annoying, you can easily fix the problem. Replacing the belt with a new one will usually take care of the issue. Once the belt snaps, your motor will no longer work. Some screeching noises are caused by unlubricated parts. By adding a little oil to the motor, you can resolve those noises.

3. Unusual Clicking Sounds

When the HVAC unit turns on and off, it is normal to hear a clicking sound. If you are hearing rapid clicking noises, that is not a good sign. This means the compressor or relay is bad and needs to be replaced.

4. Rattling

A well-maintained compressor should not make rattling sounds. If your compressor is rattling, your motor may be on the way out. These loud sounds indicate that you have a failing part. If you hear any rattling noises, your unit needs to be inspected by a trained technician.

5. Thwapping

If you are experiencing this sound, the blower blades are hitting a foreign object in your vents. As soon as you hear it, you need to remove any obstruction from your cooling system.

If you are experiencing any of these sounds, you need to contact a professional HVAC company. Our trained technicians will conduct a full point inspection of your system. Call Smith & Willis in Commerce City, CO, to schedule your in-home visit today. We perform a full range of heating and cooling services.