Problem
An unusual odor comes from air vents when the AC runs.
Possible Causes
Dirty air filter
Mold in ductwork
Clogged drain line
How To Fix It
Replace the air filter
Inspect vents for dust buildup
When To Call A Professional
Duct cleaning or mold removal may be necessary.
ProblemThe air conditioner makes a repeated clicking sound when trying to start. Possible CausesFaulty thermostatElectrical relay problemsFailing capacitor How To Fix ItCheck thermostat batteriesTurn the system off and restart after a few minutes When To Call A ProfessionalElectrical component failures should be inspected by a licensed HVAC technician.
ProblemThe thermostat is set to cooling but the AC system does not respond. Possible CausesDead thermostat batteriesFaulty thermostat wiringHVAC control board issuePower interruption How To Fix ItReplace thermostat batteriesCheck the breaker panelReset the thermostatConfirm thermostat is set to cooling mode When To Call A ProfessionalIf the system still does not respond, an HVAC technician should…
ProblemThe AC system struggles to cool because the outdoor condenser coil is covered with dirt or debris. Possible CausesOutdoor dust and dirt buildupLeaves or debris around the unitLack of regular maintenanceRestricted airflow How To Fix ItTurn off power to the outdoor unitRemove debris from around the unitGently rinse coils with waterEnsure proper airflow around the…
ProblemThe AC system struggles to cool the garage even though other rooms feel comfortable. Possible CausesPoor insulationBlocked ventsDuctwork restrictionsHigh outdoor heat entering the garage How To Fix ItEnsure vents in the garage are openCheck airflow from the ventClose garage doors and windowsImprove insulation if possible When To Call A ProfessionalIf airflow is weak or nonexistent,…
ProblemThe AC fan runs but the compressor does not start, meaning air may circulate but the system cannot cool the home. Possible CausesFailed capacitorBad contactorCompressor overload trippedElectrical issue at the outdoor unit How To Fix ItCheck thermostat settingsInspect the breaker for the outdoor unitLook for a swollen or leaking capacitor if visibleTurn the system off…
ProblemIce forms on the outdoor air conditioning unit. Possible CausesLow refrigerantRestricted airflowDirty coils How To Fix ItTurn off the AC to allow the ice to meltReplace the air filter When To Call A ProfessionalLow refrigerant or coil problems should be inspected by a technician.