9–5
62-11637
Indication/Trouble
Possible Causes
Action / Reference
9.3.5
Unit Will Not Terminate Cooling
Unit fails to stop cooling
Temperature sensor malfunction
Incorrect temperature scale, check whether microproces-
sor is set for °C or °F
Check
9.3.6
Unit Will Not Heat Or Has Insufficient Heating
Refrigeration system
Abnormal pressure
Main microprocessor malfunction
Solenoid valve malfunction
Bypass check valve malfunction
Clutch failure
Compressor
Compressor internal damage
9.3.7
Unit Will Not Terminate Heating
Unit fails to stop heating
Temperature sensor malfunction
Incorrect temperature scale, check whether microproces-
sor is set for °C or °F
Check
9.3.8
Defrost Cycle Malfunction
Will not initiate defrost automati-
cally
Defrost timer has not expired
Check/Reset
Defrost air switch (DAS) malfunction
DTT is above 40°F (4.4°C)
Cool Down
Damaged or corroded electrical connections at DTT
Check/Repair
Will not initiate defrost manually
Display key defective
DTT is above 40°F (4.4°C)
Cool Down
Unit has been running less than 15 seconds
Try again
Initiates but does not defrost
Low refrigerant charge
Solenoid valve malfunction
Clutch failure
Frequent defrost
Defrost air switch (DAS) out of adjustment
Wet load
Normal
Does not terminate or
cycles on defrost
Defrost air switch (DAS) out of adjustment
DTT malfunction
Refrigerated Compartment
Hot Load
Allow time to pull
down
Defective or insufficient refrigerated compartment insula-
tion or air leak
Correct
Содержание Transicold X4 7300
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