AC System Airflow Pulsing

ProblemThe indoor air handler does not start even though the thermostat is set to cool. Possible CausesTripped breakerThermostat malfunctionBlower motor failureElectrical issue How To Fix ItCheck the breaker panelConfirm thermostat settingsInspect the air filter for blockageRestart the system after checking power When To Call A ProfessionalIf the air handler still does not start, an HVAC…

ProblemDust blows out of the vents when the AC system runs. Possible CausesDirty air filterDust inside ductworkDirty ventsClogged return air vent How To Fix ItReplace the air filterClean vent coversVacuum around ventsInspect return vents for dust buildup When To Call A ProfessionalIf dust continues blowing from vents, duct cleaning may be required.

ProblemSome rooms feel cool while others remain warm when the AC runs. Possible CausesBlocked ventsDuctwork imbalanceDirty air filterPoor insulation How To Fix ItOpen all ventsReplace the air filterCheck airflow in each roomKeep interior doors open When To Call A ProfessionalIf uneven cooling continues, the duct system may need balancing by an HVAC technician.

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.

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…

Problem Your air conditioner is running but warm air is coming from the vents. Possible Causes How To Fix It When To Call A Professional Warm air often indicates a refrigerant or compressor problem that requires professional service.