When a residential dishwasher displays an "E1" error code, it signifies a water fill malfunction, meaning the appliance is either taking too long to fill or failing to detect adequate water levels in the tub. To resolve this, first verify that the manual water supply valve beneath your kitchen sink is turned fully open. Second, inspect the flexible water supply hose for kinks or blockages. Third, disconnect the supply line from the water inlet valve and clean the small internal mesh filter screen. You can troubleshoot fill errors easily. You can verify that your corrective action is successful when clearing inlet blockages and running a test cycle allows the tub to fill rapidly without triggering the E1 error.
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