Field pattern: dishwasher not cleaning (hot water, filter and spray arms before the pump)

Modern dishwashers use little water, so cold water in the supply line, a clogged filter or blocked spray-arm holes ruin cleaning long before a wash pump fails. Techs check incoming water temperature, the filter, spray arms and loading first. Replacing the circulation pump on a filter or water-temperature complaint is the expensive wrong turn.

Cross-checked ~40 min easyBrands: All

Before you start

  • Unplug or turn off the breaker before reaching into the sump area
  • Watch for broken glass in the filter and sump

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Field pattern: dishwasher not cleaning (hot water, filter and spray arms before the pump) · OnCall Tech