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Dishwasher Testing Protocol
gu.blanchard and one other contributor
Last updated on Sep 2, 2026
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Introduction
Go to step 1 ↓This testing protocol helps diagnose a dishwasher that has a water drainage problem by checking the operation of the drain pump and the pressure switch.
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If you do not hear the pump engage and a water intake occurs immediately, the pressure switch is likely faulty.
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To reassemble your device, follow the instructions in reverse order.
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