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When your air conditioner starts making uncommon noises, it’s time to call your local A/C or heating contractor for answers. The potential for damage to your HVAC system is high if you ignore the following unexpected warning noises.

What Are Some Warning Noises Your A/C Might Make?

1. Whistling

If your air conditioner whistles when you turn it on, not only can the sound be annoying, but it can indicate a problem with your filter. The filter is designed to catch dust and other debris, so if it’s very clogged, the airflow is reduced, and this can make a whistling sound.

Additionally, your ducts may be mismatched or leaking. A thorough inspection and duct cleaning by your local A/C and heating contractor can help address the whistling and make sure your unit functions properly.

2. Buzzing

heating contractor-Wisconsin RapidsA buzzing sound from your HVAC system is almost always an electrical issue, which is very dangerous. It could be an issue with the contactor relay switch, loose wiring, or the condenser fan motor. Turn off your unit and contact an AC repair specialist right away to professionally investigate the source of the sound.

3. Squealing 

Low-pitched squealing usually means you need to replace the belt. While this is a more simple repair, it should still be taken care of promptly. If the belt brakes, it will damage other parts of your HVAC system.

High-pitched squealing is more dangerous. This noise usually means your air conditioner’s compressor is experiencing high pressure. Most A/C units have a sensor to automatically turn off when high pressure is detected. If the sensor has failed, then it’s important to immediately turn the air conditioner off and back on.

 

Trust the expert A/C and heating contractors at Guelzow Heating & Air Conditioning Service in Wisconsin Rapids, WI. They’ve been in business for more than 60 years and have a reputation for quality services and fair prices. This company provides AC installation, furnace installation, emergency furnace repair, and more. They also work with you to create a detailed maintenance plan for your systems to help save you money. Connect with them online or call them at (715) 423-1086 for your free estimate.

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