C2 Chk Evap1 Superheat

Superheat out of range in evaporator 1 of compartment 2.

Possible causes

Electronic expansion valve (EEV) failure
Low refrigerant charge
Erratic suction pressure or temperature sensor

Recommended actions

Monitor EEV opening on the microprocessor
Check refrigerant charge
Evaluate involved temperature and pressure sensors
Replace EEV or sensor based on diagnosis

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