Dimplex Display / Indicator Failure

Water heater operates but display or indicator lights are blank or unreadable

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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 display backlight, Loose display connector, Damaged user interface PCB, Low-voltage supply fault on PCB

How to Fix / Troubleshooting

Safety: Isolate power before removing the front panel.

  • Check operation: Confirm that hot water is produced and that the unit responds to button presses, indicating only the display is faulty.
  • Inspect connectors: Reseat the display ribbon cable or connector on both the UI and main PCB.
  • Replace UI: If the display remains blank, replace the user interface/display PCB with the correct Dimplex part.
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Repair Difficulty

Medium 3/5

Required Part

User Interface / Display PCB
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