Eaton
Controller Power Supply or Display Failure
Controller display is blank or very dim, but battery is known to be good.
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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
Blown low-voltage fuse feeding controller, Loose controller power connector, Failed backlight or LCD module, Internal controller power supply fault
How to Fix / Troubleshooting
Safety first: Turn generator OFF and disconnect battery negative before removing controller covers.
Steps:
- Check fuses: Locate and test the low-voltage fuses supplying the controller. Replace any blown fuses with correct rating.
- Verify power at controller: Measure DC voltage at the controller power input terminals. If absent, trace wiring back to the battery.
- Inspect connectors: Reseat the controller’s multi-pin connectors.
- Replace controller/display: If power is present but the display remains blank, replace the controller or display module with the Eaton-specified part.
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Repair Difficulty
Medium
3/5
Required Part
Controller Display Module
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