Slant/Fin Display Module Failure

Boiler display is blank or unreadable but boiler still runs

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.

Possible Causes

Failed LCD/LED display on Slant/Fin control, Loose display ribbon cable, Low control voltage, Moisture intrusion

Safety: Turn off power before removing control covers.

Steps:

1. Reseat connectors: Carefully unplug and replug the display ribbon cable or connector on the control board.
2. Check for moisture: Look for condensation or water damage around the control. Correct any leaks.

Professional repair: If the display remains blank, the display module or entire control board may need replacement.

Medium 3/5

Boiler Control Board

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