Dishwasher display and buttons work, but the cycle stops randomly and the machine resets or turns off.

Safety first: Disconnect power before accessing electrical components.

• Check power connection: Ensure the plug is firmly inserted and the socket is not loose. Avoid using multi‑way adapters.
• Inspect mains filter and wiring: Remove the lower front panel and check the mains filter and wiring for loose connections or signs of overheating.
• Control board inspection: Remove the inner door panel and inspect the control board for moisture, corrosion, or burnt components. Dry gently if damp.
• Ventilation: Ensure the dishwasher has adequate ventilation around it and is not overheating due to tight enclosure.
• Replace faulty components: If the mains filter or control board shows signs of failure, replace with Grundig-compatible parts.