When a residential dishwasher repeatedly displays flashing error codes or fault numbers on its control panel, it indicates that the electronic control board's self-diagnostic system has detected a persistent mechanical, electrical, or hydraulic malfunction. Common triggers include drainage blockages, water fill failures, leaking base pans, heating element faults, or failing thermistors. You can troubleshoot error loops easily by performing a hard power reset at the circuit breaker. You can verify that your corrective action is successful when fixing the root physical problem—such as clearing a clogged drain hose or cleaning a sump filter—and resetting power permanently clears the error code.
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