Bosch WVD24660GB02 not completing

Bosch WVD24660GB02 – stopping with around 39 mins remaining but not actually running to time – set on cotton wash empty temp@ 90deg should be 180 mins there a bouts – around 45 mins through wash timing, agitates and heats then had jumped down to show 39 mins and drained off water sit there does nothing? Rinse only cycle runs 15 mins stops at 9 mins remaining.
I have checked heater no shorts – It fills, heating up, it agitates, it drains out.
I checked the individual – valves, heaters, pump all check out ok.
No fault codes showing.
The motor did sound as though it was labouring at one point when i tried spin a bit like you get with induction drone noise as it was getting up to speed – yet this is brushes.
I asked the customer to run empty later she confirmed.
The super quick cycle stopped 9 mins remaining.
The spin stuck at 8 mins – she retried and it did finish.
The rinse cycle and spin are timed so assume this can only be a pcb fault.? These boards are mega bucks so wanted to be absolutely sure before replacing.