First, check your thermostat settings and replace the air filter if it’s dirty – these simple steps solve about 30% of HVAC problems. Verify that circuit breakers haven’t tripped and that your outdoor unit (if you have one) isn’t blocked by debris, snow, or ice.
If these basic checks don’t restore operation, contact a professional HVAC technician rather than attempting repairs yourself. HVAC systems involve electrical components, refrigerants, and gas connections that require proper training and tools to service safely.
Document what you notice before the system stopped working – unusual sounds, smells, or performance issues help technicians diagnose problems faster. Keep your system’s model and serial numbers handy, along with maintenance records if available. In Connecticut’s extreme weather, HVAC emergencies need prompt professional attention to restore comfort and prevent further damage to your system.