Assess the causeFollow the evidence.
Use the full model number and exact code to identify the affected system, then test the cause.
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.
Photograph the complete display and note whether the error happens at fill, wash, drain or spin.
Record the timing, previous work and accessible model label. Do not remove covers or handle live, refrigerant or pressurised components to obtain information.