The controller displays 'Charger Fault' or 'Battery Charger Failure'; battery voltage may be low despite AC power being present.

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 power 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 undamaged. Look for signs of overheating at terminals.
• 4. Measure charger output: With AC power applied and the battery connected, measure DC voltage at the battery. If the voltage does not rise above the 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 the battery and restore AC power, then clear the 'Charger Fault' alarm by cycling OFF then AUTO.