What is err 70? - Kenmore HE2 Plus Front Load Washer

F70 and F71 are two logic board error codes that point at a communication error between the main logic module and the control pad (user interface and CCU), and between the motor control unit and central control (MCU, andd CCU that is main control module).

Repair is difficult, as motor, wiring and voltages from control modules must be tested. Try first doing a reset, by disconnecting power cord or tripping circuit breaker and leaving power off for five minutes.

If that does not help and errors come back, then the best thing to do is calling the service number listed on the user manual.

Here extensive explanation of error codes and relative troubleshooting:
F70: CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving

Hope this helps.

Hello,

The F 70 error code is a code thrown up when the washer thinks the Main control board isn't communicating with the touchpad/cycle selector.

What is needed to check that . Check for tight wireing connection between the cycle selector, check for breaks in the wiring harness between the cycle selector and the main control board.

If all connections are good and continunity from ened to end of all the wires. The cycle selector needs to be replaced IF the drum will rotate, and replace the main control board if the drum doesn't rotate.

I hope this helps

Gene