04
Thermo King
Warning
Check (Control) Discharge Air Sensor (Zone)
Failure of the discharge air sensor, which measures the air leaving the evaporator toward the cargo.
Possible causes
- Defective discharge sensor
- Ice buildup on evaporator affecting sensor
- Poor electrical connections
Recommended actions
- Inspect sensor at the evaporator outlet
- Check for ice obstructions
- Check wiring continuity to the controller
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