545
Thermo King
Warning
Battery Charger Output Voltage Exceeded Limit
The battery charger output voltage exceeded the maximum safety limit.
Possible causes
- Internal charger regulator failure
- Sudden battery disconnection while charging
- Incorrect battery type configuration
- Charger voltage sensor failure
Recommended actions
- Measure output voltage with a calibrated multimeter
- Ensure battery cables are secure
- Check controller settings (Lead-acid vs AGM)
- Replace charger if voltage exceeds 15V-16V on nominal 12V
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