Assess the causeFollow the evidence.
Check the supply, plug condition, control settings, start relay and model-specific electronic controls.
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.
Describe whether the lamp, display and compressor are all inactive or only one is affected.
Record the timing, previous work and accessible model label. Do not remove covers or handle live, refrigerant or pressurised components to obtain information.