Error code reference

Maytag Dishwasher Error Code 7-1

No heat

No heat — heater circuit problem: open in heater, open connection or component in Heater Circuit, or faulty heater drive circuit on control.

First step from the service manual

1. Check operation of heater in Service Diagnostics cycle. 2. Unplug dishwasher or disconnect power. 3. 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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7-1 on my Maytag Dishwasher

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No heat — heater circuit problem: open in

From Tech Sheet W15360492, p.24:

1.1. Check operation of heater in Service Diagnostics cycle. 2. Unplug dishwasher or disconnect power. 3. Measure resistance of heater and all components and connections in Water Heating Circuit/Heat Dry Circuit.

2.Measure the heating element resistance across the terminals with the leads removed. Expected: 11 to 13 ohms.

3.Verify the thermal fuse and high-limit thermostat show continuity. An open safety in series with the element produces a no-heat fault even when the element tests good.

Part WP279838

Heating element

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First step from the service manual

Get the full diagnostic procedure for 7-1.

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