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HVAC
NATE Light Commercial Refrigeration Service Specialty
Display Case Service
Knowledge Check
Display Case Service
Knowledge Check
Knowledge Check
1 / 15
A customer reports that products in an open multi-deck display case are warming. The evaporator fans are running and the compressor is cycling normally. What is the most likely cause?
A
Products are stacked above the load line, disrupting the air curtain
B
The defrost heater is running continuously
C
The refrigerant charge is low
D
The condenser coil is dirty
Check Answer
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