Viadrus Display Module Failure

Furnace display is blank or unreadable, but the burner and pump still operate.

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 Viadrus control, Loose ribbon cable to display, Backlight failure, Moisture ingress into control panel

Safety: Isolate power before opening the control panel.

Check contrast/brightness: Some displays have a contrast adjustment. Try adjusting if accessible.
Inspect cable: Remove the front panel and reseat the ribbon cable or connector between the display and main board.
Dry moisture: If condensation is present, allow the panel to dry completely and improve ventilation around the furnace.
Replace display: If the display remains blank, replace the user interface/display module with a compatible Viadrus part.

Medium 3/5

User Interface / Display Module

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