SDMO
Control Panel Power Loss
SDMO controller display is blank or intermittent; generator cannot be controlled from panel.
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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 DC supply fuse to controller, Loose power connector on SDMO control module, Faulty internal power supply in controller, Broken wiring from battery to panel
How to Fix / Troubleshooting
Safety first: Turn off all power sources and disconnect the battery before opening the control panel.
- Check DC fuses: Locate and test the fuses supplying the SDMO controller. Replace any blown fuses with the correct rating and investigate cause.
- Inspect power wiring: Verify tightness of battery positive and negative connections at the controller terminals.
- Test voltage at controller: With battery connected, measure DC voltage at the controller power input. If absent, trace wiring back to the battery.
- Replace controller if necessary: If correct voltage is present but the display remains dead, the controller may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
SDMO Control Module
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