Assess the causeFollow the evidence.
Check retained water, load balance, lid or door locking, drive components and control feedback.
The exact model and operating conditions determine which tests apply. These are possible inspection directions, not a list of components that must be changed.
Before the appointmentKeep the useful details.
Note whether the wash stage works and whether water has drained before the spin stops.
Record the timing, previous work and accessible model label. Do not remove covers or handle live, refrigerant or pressurised components to obtain information.