Charger Fault
GE Integrated Battery Charger Failure

Controller displays 'Charger Fault' or 'Battery Charger Failure'; battery voltage may be low despite AC present.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed GE battery charger module, Blown charger input fuse, Open AC feed to charger, Shorted battery wiring

How to Fix / Troubleshooting

Safety First: Turn OFF utility power feeding the generator and disconnect the negative battery cable before servicing the charger.

  • 1. Verify AC supply to charger: Using a multimeter, confirm that the charger input terminals receive the correct AC voltage when utility is present.
  • 2. Check charger fuse: Locate any fuses protecting the charger input or output. Replace blown fuses with the same type and rating after correcting any short circuits.
  • 3. Inspect charger wiring: Ensure the DC output leads from the charger to the battery are tight and not damaged. Look for signs of overheating at terminals.
  • 4. Measure charger output: With AC applied and battery connected, measure DC voltage at the battery. If voltage does not rise above static battery voltage, the charger module is likely defective.
  • 5. Replace charger module: Install a GE-approved replacement charger module, observing correct polarity and mounting. Reconnect battery and restore AC, then clear the Charger Fault alarm by cycling OFF then AUTO.
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Repair Difficulty

Medium 3/5

Required Part

Battery Charger Module
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