Dishwasher shows E40; may not start and may indicate a configuration or sensor mismatch.

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

Incorrect configuration in control board, Faulty sensor (NTC, turbidity, pressure), Control board firmware issue

Safety first: Unplug the dishwasher before any internal work.

Power reset: Disconnect power for 10 minutes to reset the control electronics.
Check sensors: Verify that NTC, pressure switch, and turbidity sensor connectors are secure and that no sensor is obviously damaged.
Service mode: Some Teka models allow entering a service mode to reset configuration; refer to the service manual. If unavailable, contact Teka support.
Board replacement: If E40 persists, the main control board may require replacement and configuration by a technician.

Professional Required 5/5

Main Control Board

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