Problem
A loud screeching sound comes from the AC unit when it starts or runs.
Possible Causes
Worn fan motor bearings
Loose fan belt
Debris inside the fan
Motor failure
How To Fix It
Turn off the AC system
Inspect the outdoor fan area for debris
Check if the noise occurs during startup
Restart the system briefly to confirm the sound
When To Call A Professional
A screeching noise usually indicates a failing motor or mechanical component that requires repair.
ProblemThe AC unit produces a high pitched noise while running. Possible CausesFan motor issuesLoose internal componentsRefrigerant pressure problemsWorn bearings How To Fix ItTurn off the AC systemInspect the outdoor unit for debrisRestart the system briefly to identify the noise source When To Call A ProfessionalA high pitched noise may indicate a failing motor or compressor…
ProblemA burning smell comes from the vents when the AC system runs. Possible CausesDust burning off componentsElectrical wiring issueOverheating motorDirty air filter How To Fix ItTurn off the AC systemReplace the air filterCheck for dust buildup near ventsAllow the system to cool before restarting When To Call A ProfessionalIf the burning smell continues, an HVAC…
ProblemThe bathroom sink does not drain properly and water backs up in the basin. Possible CausesHair clogSoap scum buildupBlocked P-trapDeeper drain blockage How To Fix ItRemove the drain stopperPull out visible hair or debrisRun hot water to test drainageClean the P-trap if accessible When To Call A ProfessionalIf the sink still does not drain after…
ProblemA musty or mold smell comes from the vents when the AC runs. Possible CausesMold in ductworkDirty evaporator coilClogged condensate drainExcess moisture in the system How To Fix ItReplace the air filterClean vent coversRun the system fan to circulate airInspect drain line for clogs When To Call A ProfessionalPersistent mold smells may require professional coil…
ProblemThe AC compressor repeatedly clicks on and off without running normally. Possible CausesFaulty capacitorElectrical issueCompressor overload protectionLow refrigerant How To Fix ItTurn the system off temporarilyInspect the breaker panelCheck for unusual noises at the outdoor unitRestart the system after cooling down When To Call A ProfessionalFrequent compressor clicking should be inspected by an HVAC technician.
Problem One room is not cooling while the rest of the house is comfortable. Possible Causes • Blocked vent• closed damper• poor airflow• insulation issue How To Fix It • Check and open vents• remove obstructions• balance airflow• use a fan to assist When To Call A Professional If problem persists in a single room…