Problem
The thermostat is set to cooling but the AC system does not respond.
Possible Causes
Dead thermostat batteries
Faulty thermostat wiring
HVAC control board issue
Power interruption
How To Fix It
Replace thermostat batteries
Check the breaker panel
Reset the thermostat
Confirm thermostat is set to cooling mode
When To Call A Professional
If the system still does not respond, an HVAC technician should inspect the thermostat wiring and control board.
ProblemThe water heater makes popping or rumbling noises while heating water. Possible CausesSediment buildup in the tankHard water mineral depositsOverheating at the bottom of the tank How To Fix ItListen for when the noise occurs during heatingFlush the tank if maintenance access is availableCheck the age of the heaterMonitor hot water performance When To Call…
ProblemThe AC system cools the house but seems less effective than before. Possible CausesDirty air filterDirty condenser coilsLow refrigerantAging HVAC system How To Fix ItReplace the air filterClean around the outdoor unitEnsure vents are openMonitor cooling performance When To Call A ProfessionalIf efficiency continues to drop, a technician should inspect refrigerant levels and system components.
ProblemThe AC air filter becomes dirty much faster than expected. Possible CausesExcess dust in the homePets shedding hairClogged ductworkPoor indoor air circulation How To Fix ItReplace the air filterVacuum vents and surrounding areasKeep doors and windows closed during coolingConsider using higher quality filters When To Call A ProfessionalIf filters continue clogging quickly, duct cleaning or…
ProblemAirflow from the vents feels weak even though the system is running. Possible CausesClogged air filterBlocked ductworkFailing blower motor How To Fix ItReplace the air filterEnsure vents are fully open When To Call A ProfessionalPersistent airflow problems may require duct or blower repairs.
Problem Ice forms on the AC unit or evaporator coil. Possible Causes How To Fix It When To Call A Professional If freezing continues after airflow issues are corrected, refrigerant levels may need inspection.
ProblemThe AC unit makes a clicking sound but never fully starts, leaving the home without cooling. Possible CausesBad capacitorFaulty contactorLow voltage issueFailing compressor How To Fix ItConfirm the thermostat is set to coolCheck the breaker panel and reset if neededListen for repeated clicking from the outdoor unitTurn the system off if it keeps trying to…