CENNTRO LOGISTAR 100 - Insufficient Refrigeration

Air conditioning control system
251
11.2.6 Insufficient refrigeration
S/N
Inspection steps
Inspection results
0
Check the circuit
fault of the air
conditioning system
Normal
Faulty
Operation method
Check the poor
connection of the air
conditioning system
circuit
Proceed
to Step 1
Poor connection of
the air conditioning
system circuit
Repair and check the
faulty circuit
1
Check the refrigerant
oil
Normal
Faulty
Operation method
Check whether the
refrigerant oil is
excessive
Proceed
to Step 2
Excessive
refrigerant oil
Replace the refrigerant
and refrigerant oil
proportionally
2
Check the refrigerant
Normal
Faulty
Operation method
Check whether the
refrigerant is
insufficient
Proceed
to Step 3
Insufficient
refrigerant
Fill the refrigerant
amount to the standard
value
3
Check the expansion
valve
Normal
Faulty
Operation method
Check whether the
expansion valve is
damaged.
Proceed
to Step 4
Expansion valve
damaged
Replace the expansion
valve
4
Check the operation
Normal
Faulty
Operation method
After the correct
maintenance
operation, check
whether the fault
occurs
Diagnosis
is ended
The fault does not
disappear
Find the cause of the
fault from other
symptoms