Problem
The thermostat does not control the AC system properly.
Possible Causes
How To Fix It
When To Call A Professional
A technician may need to test the thermostat wiring or replace the unit.
ProblemThe kitchen sink drains slowly and water collects in the basin. Possible CausesGrease buildupFood debrisPartial drain blockageDirty P-trap How To Fix ItRemove debris from the sink strainerRun hot water through the drainUse a plunger if neededClean the P-trap under the sink When To Call A ProfessionalIf the sink continues draining slowly after cleaning and plunging,…
ProblemThe AC system takes a long time to start after adjusting the thermostat. Possible CausesWeak capacitorThermostat delay settingsElectrical issueAging compressor How To Fix ItCheck thermostat programmingInspect the breaker panelWait several minutes after adjusting the thermostatMonitor the startup behavior When To Call A ProfessionalIf the unit repeatedly delays startup, the capacitor or compressor may need inspection.
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.
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 outdoor AC fan does not spin even though the unit is on. Possible CausesFaulty capacitorBurned fan motorElectrical issues How To Fix ItTurn off the systemInspect the fan for visible debris When To Call A ProfessionalFan motor or capacitor replacement should be handled by an HVAC technician.
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…