551
Thermo King
Warning
Battery Charger Internal Temp Sensor Fault
Fault in the sensor monitoring the internal temperature of the battery charger.
Possible causes
- Defective internal thermistor
- Sensor connector loose on the main board
- Cold solder joint on the control circuit
Recommended actions
- Inspect internal charger connections
- Clean connectors with contact cleaner
- Replace control board or complete charger
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