Dishwasher not draining / standing water
Work from cheapest to costliest: filter and sump, drain hose and disposer/air gap, then pump impeller, then pump power. Water that returns 30-60 minutes after a good drain points to the check valve.
Before you start
- Turn off power at the breaker before reaching into the sump or pump
- Watch for broken glass in the sump
Diagnostic steps
Unlock all 5 steps with expected values
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Get lifetime accessOnCall 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.
