E40/E41 error code on Zanussi IZ16s NOT door solenoid?

Hey, I wondered if someone could point me in the right direction. I've done some searching on the forums to find a solution to no avail.

The problem: Try to start program, door solenoid "clunks" 2-3 times then beeps with E40 error code.

Subsequent diagnostic checks (turn machine off, hold start/pause button and reset button down together, turn machine on. Then press Fabric button once or twice) Narrow the E40 to an E41 fault code.

I've had a serviceforce rep in to look at the door solenoid which has been replaced but the code still remains. and I'm fairly certain the solenoid is working ok.

I have reseated all the connectors to the pcb with no joy. There is one connector with about 3 wires Brown/purple/white "dangling" with no obvious purpose or place to put it - I think it may be redundant in my model but is there due to the use of "common components" between machine designs.

I suspect I have a dodgy PCB but could I have missed anything else? I'm confident I can replace the PCB myself and use the configuration guides from the internet to program it to be model specific, but at £130 I'm not sure I want to take this route if it isnt the answer.

Hopefully someone can provide some guidance...

Many thanks in anticipation.