DuroMax Exercise Timer / Scheduler Malfunction

Generator fails to run scheduled exercise cycle

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Possible Causes

Incorrect date/time settings, Exercise function disabled, Firmware glitch in controller, Low battery preventing start

How to Fix / Troubleshooting

Safety first: Ensure the generator is in a safe state and not under load while adjusting settings.

  • Verify clock: Set the correct date and time in the controller menu.
  • Check exercise settings: Confirm that the exercise function is enabled and scheduled for the desired day and time.
  • Battery status: Make sure the battery is fully charged and E13 or similar low‑battery conditions are not present.
  • Controller reset: If the schedule still does not run, perform a soft reset of the controller per the manual. Persistent issues may require controller replacement.
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Repair Difficulty

Easy 2/5

Required Part

Generator Control Module
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