Check Evaporator Fan High Speed (Zone)

A fault was detected in the high-speed circuit of the evaporator fans.

Possible causes

Failed high speed relay
Loose high speed connection
Fan motor with damaged winding
Controller board issue

Recommended actions

Check high speed relay
Verify motor voltages during high speed mode
Inspect wiring integrity
Replace fan motor if necessary

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Other Thermo King codes

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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