Thanks Bryan ... will check for your reply while I am getting ready for work.
Drive Motor Tachometer Error
The control is unable to properly detect motor speed and the machine will shut down.
If a failure occurs during high-speed spin the door will be unlocked after 3 minutes.
Motor Control unit (MCU), and between the MCU and the Central Control Unit
Can you remove the top of the machine ? what I mean is the dryer isn't on top correct ? if so you need to check the wiring harness between the MCU (motor control unit) and the CCU (central control unit) the CCU is number 4 on this diagram. the MCU is located on the floor of the unit. number 37 on this diagram.unplug the cables and plug them back in. see if that corrects the bad connection.
the dryer is not on top of the washer ... it is beside it... the tachometer error is F06 ... what about the Eo1 code?
I will not be able to try all you have suggested until after work tonight ... but thank you for all your help ...hopefully it is a bad connection! Can I email you back when I have tried everything?