Check Loader #2 Circuit

Fault in the compressor loader/unloader #2 circuit.

Possible causes

Open or shorted solenoid coil
Wire harness failure
Board relay issue

Recommended actions

Measure unloader #2 coil resistance
Inspect compressor-to-controller wiring
Verify mechanical valve operation

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00No Alarms Exist 02Check Evaporator Coil Sensor (Zone)03Check (Control) Return Air Sensor (Zone)04Check (Control) Discharge Air Sensor (Zone)05Check Ambient Temp Sensor 06Check Coolant Temp Sensor

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