The dishwasher displays E11 and may not complete the cycle; this is often linked to drain temperature or the safety thermostat.

Safety first: Isolate power and allow the machine to cool completely before touching internal components.

• Check for overheating signs: Look for steam, a very hot door, or tripped external safety devices.
• Locate safety thermostat: On many Maidaid models, a manual-reset safety thermostat is mounted on the tank or boiler. Press the reset button if present.
• Inspect circulation: Ensure the Maidaid wash pump is operating and that filters and spray arms are not blocked, which can cause localized overheating.
• Test thermostat: With a multimeter, check continuity across the safety thermostat. Replace if it does not reset or remains open at normal temperatures.
• Check heater control: If the heater remains energized when it should be off, the control board heater relay may be welded closed. This requires replacement of the PCB by a qualified technician.