ISE 10 W256W (ASKO WM70.1) washing machine won't turn on

[flannel]

Can anybody please offer any guidance with the following problem.

The power button doesn't work but when turned off at the socket, left a few seconds and turned back on, the lights briefly come on.

The history so far is here.

 

[James360]

has that machine got a brushless motor if it hasnt check the state of the motor brushes also check the condition of the mains filter as they are notoriously un reliable on that model

 

[flannel]

Thanks James,
The problem is fixed - I attached my multimeter to measure the voltage across the on switch and as I turned the power on at the wall, the machine came on and stayed on and now seems to be fully functional again!
I can't be sure if it was connecting the multimeter that fixed it or one of the following:

• Measuring the voltage across all diodes (using the multimeter diode setting).
• Measuring the voltage from base-to-source and base-to-collector on all transistors (using the diode setting).
• Measuring the source-to-collector resistance on all transistors.
• Allowing enough time to pass for something to dry out (although there was no evidence of water).
• General movement of cables if there is a broken one (including taking out the motor control board to check the fuse).

Now when I turn it on at the wall, it doesn't light up until the on button is used.

 

[James360]

Thanks James,
The problem is fixed - I attached my multimeter to measure the voltage across the on switch and as I turned the power on at the wall, the machine came on and stayed on and now seems to be fully functional again!
I can't be sure if it was connecting the multimeter that fixed it or one of the following:

• Measuring the voltage across all diodes (using the multimeter diode setting).
• Measuring the voltage from base-to-source and base-to-collector on all transistors (using the diode setting).
• Measuring the source-to-collector resistance on all transistors.
• Allowing enough time to pass for something to dry out (although there was no evidence of water).
• General movement of cables if there is a broken one (including taking out the motor control board to check the fuse).

Now when I turn it on at the wall, it doesn't light up until the on button is used.

edge connectors are a major problem on washing machine pcbs a lot of faults can be cured by just cleaning the contacts on the board a use a commutator cleaning stick for this or a fibreglass pencil