Error code reference

Maytag Dryer Error Code F6 E1

Communication Failure Between ACU and UIC

Communication Failure Between ACU and UIC — electrical connection between ACU and UIC is damaged.

First step from the service manual

Verify that the communication cable between the ACU and UIC is connected and that there is continuity. If continuity test fails, replace the communication cable. If fault is still present, check for power to the ACU.

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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F6 E1 on my Maytag MED7230HW

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Communication Failure Between ACU and UIC —

From Tech Sheet W11956143, p.35:

1.Verify that the communication cable between the ACU and UIC is connected and that there is continuity. If continuity test fails, replace the communication cable. If fault is still present, check for power to the ACU.

2.Inspect the communication harness between the main control and the UI board for bent pins or unseated connectors at each end.

3.Measure supply voltage to the UI board. Expected: 5 VDC at the interface connector; a low or missing rail points back to the main control supply.

Part W10811169

User interface control board

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First step from the service manual

Get the full diagnostic procedure for F6 E1.

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