Bosch User Interface / Display Failure

Furnace display is blank or unreadable but unit 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 display module, Loose ribbon cable between display and main board, Low control voltage, Moisture damage to interface

Safety: Turn off power before removing the front panel.

Check connections: Reseat the ribbon cable or plug between the display module and the main control board.
Moisture: Look for condensation or water marks on the display PCB. Dry gently and correct any source of leaks.

If the display remains blank, the interface module likely needs replacement by a Bosch service technician.

Medium 3/5

User Interface / Display Module

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