02Diagnostic Scenarios
Real calls. Work through them like you're on site.
A customer describes the problem. You get readings and clues, then decide what to check next. Pick the right path to the diagnosis — wrong choices come with feedback so you learn the thinking, not just the answer.
Technician
Coolroom not holding temperature
Pub owner
Mate, the coolroom's been running warm all morning. Beer's not cold. The compressor's going but it's just not getting there.
Start scenarioTechnician
Bottle cooler short cycling
Bottle shop
The bottle cooler keeps cutting out and restarting every couple of minutes. Drinks aren't cold.
Start scenarioAdvanced
Freezer room iced up, not holding temp
Restaurant
Freezer room's been creeping up. -12°C instead of -18. There's ice everywhere on the evap.
Start scenarioFoundation
Split system not cooling (domestic)
Homeowner
The split system's blowing warm air. The outdoor unit's running.
Start scenario