Strange Appears or smells normally sign the necessity for HVAC repair services. Rattling could point out free panels, squealing can place to the belt or motor issue, banging might be associated with the blower or ducts, grinding suggests worn bearings, clicking could signal electrical faults, and hissing can show refrigerant https://listbell.com/story10802323/how-much-you-need-to-expect-you-ll-pay-for-a-good-hvac-repairs