HVACDIAGNOSTIC
Problem Cluster

Outside Unit Not Running

Outdoor condenser not turning on, fan not spinning, unit silent. Capacitor, contactor, or compressor issues.

Symptoms in This Cluster

AC System Won't Turn On

The entire HVAC system is unresponsive when you try to start it.

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Condition Variations
AC Has No Power at AllOutdoor Unit Not StartingAC Not Turning On After Winter

Noisy Outdoor Condenser

Loud buzzing, rattling, or clicking from the outdoor HVAC unit.

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Condition Variations
Noisy Outdoor Condenser but Unit RunningNoisy Outdoor Condenser in Extreme HeatNoisy Outdoor Condenser Intermittent

Heat Pump Not Switching Modes

Your heat pump is stuck in cooling mode during winter or heating mode during summer.

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Condition Variations
Heat Pump Not Switching After Power OutageHeat Pump Not Switching in Extreme HeatHeat Pump Not Switching Intermittent

Related Clusters

AC Not Turning OnAC Tripping BreakerCapacitor Problems
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