HVACDIAGNOSTIC
Problem Cluster

AC Not Turning On

AC not starting, won't start, thermostat calling but unit not responding. Usually electrical failures.

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

Thermostat Display blank

No power or information showing on your wall-mounted HVAC control panel.

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Condition Variations
Thermostat Display Blank After Power OutageThermostat Display Blank 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

Outside Unit Not RunningAC Tripping BreakerCapacitor Problems
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