Built-in dishwasher with the door open and racks pulled out

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Dishwasher completely dead: no lights, no response (supply, door switch, thermal fuse)

Prove supply voltage at the junction box with a meter before blaming any part. Then check the door switch circuit and, on units that have one, the one-time thermal fuse near the control. Replace the control board only after these pass.

Cross-checked ~45 min moderateBrands: All

Before you start

Hard-wired units are live at the junction box until the breaker is off; confirm with a tester
Live voltage measurement at the junction box is caution work: insulated probes, no contact with the frame
Breaker off before touching the fuse, switches or board

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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