Safety first: Turn off power at the mains before removing the control panel glass.

Clean the panel: Wipe the glass control area with a soft, dry cloth. Remove any moisture or cleaning fluid residue that may interfere with capacitive sensing.
Power reset: Leave the oven disconnected for 5–10 minutes to allow the control electronics to fully discharge, then reconnect and test.
Inspect for cracks: Check the glass fascia for cracks near the touch areas. Cracks can disrupt the touch sensors and may require replacement of the glass/control assembly.
Check internal connections: Remove the control panel and inspect the touch PCB and ribbon cable. Ensure all connectors are firmly seated and free of corrosion.
Dry moisture: If there are signs of steam or condensation on the PCB, dry gently and improve door seal if necessary to prevent future ingress.
Replace touch board: If specific keys or the entire panel remain unresponsive despite good connections, replace the touch control board with the correct Grundig part.

Warning: Do not spray cleaning liquids directly onto the control panel; apply to a cloth first.

Touch controls or buttons unresponsive, error code or beeping on control panel

Possible Causes