Error code reference
Whirlpool Dishwasher Error Code 7-1
No heat
No heat - control programmed to disable heater but continue running cycles if it detects a water heating problem, or heater circuit problem (open heater, open connection/component), or heater drive circuit on control.
First step from the service manual
Running diagnostics clears the control and allows the heater to turn on again. Unplug dishwasher or disconnect power. Measure resistance of heater and all components and connections in Water Heating circuit/Heat Dry circuit.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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