CARO - Certified Assistant Refrigeration Operator Practice Test
CARO - Certified Assistant Refrigeration Operator CARO Refrigeration System Troubleshooting and Diagnosis
A refrigeration system has high suction pressure and high discharge pressure.
What is the most likely cause?
Select your answer
A
Refrigerant undercharge
B
Dirty or fouled condenser reducing heat rejection
C
Expansion valve too far closed
D
Compressor valve failure
Hint