Assess the causeFollow the evidence.
Trace the water source and inspect the defrost drain, collection tray, door seal and water connections if fitted.
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 where water first appears and whether the appliance has a dispenser or ice-maker connection.
Record the timing, previous work and accessible model label. Do not remove covers or handle live, refrigerant or pressurised components to obtain information.