Honeywell Display / LED Failure

Dehumidifier display is dim, flickering, or segments are missing, but the unit otherwise runs.

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Possible Causes

Aging or failed LED display, Loose display connector, Low voltage from control board, Moisture damage to display board

How to Fix / Troubleshooting

Safety: Unplug before removing the control panel.

Steps:

  • Check connections: Remove the control panel and reseat the connector between the display board and main PCB.
  • Inspect for moisture: Look for condensation or corrosion on the display board; dry and clean with contact cleaner if minor.
  • Replace display board: If segments are permanently missing or the display is very dim, replace the user interface/display board.

Tip: Even with a faulty display, avoid guessing settings; repair or replace the display to ensure safe operation.

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Repair Difficulty

Easy 2/5

Required Part

User Interface / Display Board
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