Hointpoint WMA74 Ultima?

Machine started stopping before second fill at 37 mins on med. wash red tap flashing. Over months this spread to all programs but to long wash last, also then started stopping before spin at end.

Engineer found all functions working OK in isolation hence program faulty, replace AC Power Module.

After new module first short wash OK, Med. wash stops 37 mins, second short wash stops 13 mins, but still OK on long wash.

Any suggestions?