A faulty dishwasher water inlet valve exhibits several distinct symptoms that disrupt normal appliance operation. The most frequent sign is that the dishwasher tub remains completely dry or underfilled at the start of a cycle, leaving dishes unwashed and dirty. Conversely, if the valve's internal rubber seal fails or gets jammed by debris, water may leak continuously into the tub even when the machine is turned off, causing an accidental overflow. Other warning signs include loud humming noises from the solenoid coil during fill cycles and visible water dripping onto the floor from the valve body.
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