7. Humming Humming, like squealing, may be a normal occurrence of your HVAC operating. All HVAC systems make a quiet hum when running caused by the electricity being used and/or the fan.

Consumers need a cool and comfortable home, especially in the hot months of summer. When your air conditioner (AC) begins to ...

Most experts say that detecting and dealing with refrigerant leaks is the biggest challenge in regular maintenance of air conditioning systems on Class 8 tractors. For that reason, regular ...