Problem
The fan never shuts off even when the cooling cycle ends.
Possible Causes
How To Fix It
When To Call A Professional
If the fan still runs constantly, the relay or control board may need replacement.
ProblemThe outdoor condenser fan does not spin during operation. Possible CausesFaulty capacitorBurned motorElectrical problems How To Fix ItTurn off the unitCheck for debris blocking the fan When To Call A ProfessionalFan motor replacement requires HVAC repair.
ProblemThe AC system runs but cannot keep the house cool during hot weather. Possible CausesDirty air filterLow refrigerantDirty condenser coilsUndersized AC unit How To Fix ItReplace the air filterCheck that outdoor unit coils are cleanClose doors and windows to keep cool air insideSet thermostat to a reasonable temperature When To Call A ProfessionalIf the AC…
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…
ProblemThe thermostat display is blank or not responding. Possible CausesDead thermostat batteriesLoose wiringTripped breakerFaulty thermostat How To Fix ItReplace thermostat batteriesCheck the breaker panelReset the thermostatEnsure wiring connections are secure When To Call A ProfessionalIf the thermostat remains blank after replacing batteries, it may need replacement.
ProblemOne room in the house stays warm even though the AC is running and cooling other areas. Possible CausesClosed or blocked air ventDirty air filterDuctwork blockagePoor airflow from the HVAC system How To Fix ItCheck that the vent in the room is openReplace the air filterMake sure furniture is not blocking ventsInspect visible ductwork for…
ProblemIce forms on the outside AC unit or refrigerant lines, reducing cooling performance. Possible CausesDirty air filterLow refrigerantRestricted airflowDirty evaporator coil How To Fix ItTurn the AC off and allow the ice to meltReplace the air filterEnsure vents are open and airflow is not blockedRestart the system once the ice has thawed When To Call…