Safety first: Unplug the unit before removing the control panel.

Step 1 – Inspect for moisture: Check for condensation or water behind the display lens. Dry thoroughly if present.
Step 2 – Reseat connectors: Disconnect and reconnect the display ribbon cable and UI power connector.
Step 3 – Check power supply: Verify the UI board is receiving correct low-voltage power from the main board.
Step 4 – Replace display/UI: If the display remains dim or flickers, replace the user interface/display assembly with a Teendow-compatible part.

Control panel display is dim, flickering, or partially unreadable.

Possible Causes