What does it mean if the Sanitized indicator light is blinking at the end of a cycle?
A blinking Sanitized light means the load was NOT properly sanitized. This occurs when the cycle was interrupted during the final rinse or the water heater is set too low. Set your water heater to 120°F (49°C) to resolve this issue. (Pages 7, 11)
From the official Maytag W10401489A Top Control Dishwasher manual, page 7
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