Walk-in Cooler Not Holding Temperature
- Interactive decision labs
- Built by working technicians
- Path-based verifiable certificate
- Exam preparation only
- Worldwide online
Commercial Refrigeration / RAC
~15 min
intermediate
The call
Walk-in cooler is running but product temperature is rising. Box is at 48°F, setpoint 35°F.
- Equipment
- Walk-in cooler, R-404A, remote condensing unit, electric defrost, ~8 years old
- Ambient
- 92°F
- Site notes
- Door closes properly. No recent service. Product is warm but not spoiled yet.
Decision 1 of 5
You are standing in front of the box. The condensing unit is audibly running.
What do you check first?
Where this lab sits
This is one module lab from Commercial Refrigeration / RAC. The full path adds sealed systems, defrost, rack-system orientation and natural-refrigerant safety, each ending in a lab like this one.