520
Thermo King
Warning

Check Battery Charger Output Power

Battery charger is not delivering expected output power for charging.

Possible causes

  • Defective battery charger
  • Loose or corroded output connections
  • Blown DC output fuse
  • Battery with shorted cells

Recommended actions

  • Measure charger output voltage at terminals
  • Clean and tighten battery terminals
  • Verify DC charging fuse
  • Perform battery load test

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