Unconventional Appears or smells generally sign the need for HVAC fix company. Rattling might show loose panels, squealing can point to some belt or motor problem, banging may be related to the blower or ducts, grinding indicates worn bearings, clicking may possibly signal electrical faults, and hissing can indicate refrigerant https://thesocialintro.com/story6562213/hvac-repairs-fundamentals-explained