My washer is blinking upside down F and E. Manual

this problem with the presser switch,,

I think the only way forward is to call for a quote as theses days they always put a service program in the machine circuity to enable them to warrant a service from them alone as we mortals have to pay for it, or the display unit is giving the wrong information it could have become faulty normally only the Russians language is written backwards in places eric

Might be a wire broken from vibrations or the MCU itself.
I have a service manual for you. Use the manual to reference repairs and your machine's tech sheet for error codes. This is your F-11 error from your tech sheet:
F11 Serial communication error
Communication between the Central Control Unit (CCU) and the
Motor Control Unit (MCU) cannot be sent correctly.
Possible causes/procedure:
1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and
Central Control Unit (CCU).
3. Check the drive system for any worn or failed components.
4. Plug in washer or reconnect power.
5. Verify CCU operation by running a Diagnostic test or any
cycle.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
8. Check that the serial harness at the MCU is not mounted
upside down. The wires should be to the left when facing the
MCU connectors.


I have some more photos and repair manual for duet sport model HERE



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Hi


Thanks for using FixYa. Error FE is an overflow error which indicates that the water is overflowing i.e. the water level frequency is over 213. To start with you’ll need to check the water inlet valve assembly and replace if it has gone bad. Please do rate the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

The upside down F is actually a lower case t. The fault code indicates a faulty thermistor.(temperature sensor) The first step in troubleshooting is to unplug the unit for 10 sec. plug in turn on and select rinse/spin mode and no spin option to drain the water.If this does not solve the problem you will be directed to a service company.

Thermistor is out of order. Printable service MANUAL


If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

This is a water overfill condition and many things can be causing the issue.
Leaking water valve.
Plugged water lvl. switch hose.
Problem with the main computer.

A service call may be needed.

We have the same problem on our washer - same model as yours. Home Depot has the warranty on this thank goodness we bought it. They replaced the motor and water pump - didn't fix the problem longer than a month. A new repairman has come out and says we need a new heater and thermistor (whatever that is - I checked - not a thermostat but possibly related??) Approx a $300 fix. Good luck.

But U still haven't told us specifically what the issue is with the device. So how can anyone help you?!?!?!?!?!

on the back of the stator...the inside of the motor the part that has the whindings.plastic overload replace it..if you need help i will talk you through..also look for water or a drip ...onthejob