Unusual sounds or smells usually signal the need for HVAC mend provider. Rattling may well suggest loose panels, squealing can level into a belt or motor situation, banging can be connected to the blower or ducts, grinding implies worn bearings, clicking may sign electrical faults, and hissing can suggest refrigerant https://meshbookmarks.com/story21023479/the-2-minute-rule-for-hvac-repairs