●Troubleshooting
115
7
Troubleshooting
Troubleshooting
5
Troubleshooting
Diagnosis Countermeasures
1
Applicable Models
AKZ**A (All series)
2
Methods of Malfunction Detection
Detect by the reduced
compressor operation
(discharge pipe temperature
or condenser temperature)
status. Reduced compressor
operation condition: Discharge
pipe temperature≧95℃ or
condenser temperature≧57℃.
3
Malfunction Decision Conditions
① Reduced compressor
operation is executed when
the room temperature is 30℃
or lower
② Reduced compressor speed
starts at the point of warning
capacity command value.
Warning capacity command
values are: 60% for AKZ14A,
30% for AKZ32A–90A.
4
Supposed Causes
1Obstacles around the intake
or exhaust sections
1Soiled air filter or condenser
1Higher room temperature
1Shortage of refrigerant (Slow
leak)
1Clogged refrigerant piping
Control panel display
F6
High-pressure
YES
Remove all the obstacles.
Keep any subject getting
in the way of air
ventilation from the area
within 500 mm from the
intake and exhaust port.
Clean the air filter and
condenser.
Use within the operating
range (room temperature
should be 45℃ or lower).
Reconfirmation of model
selection method.
(Contact the customer.)
Adjust the refrigerant
amount properly (Check
the refrigerant amount
during refrigerant
recovery), and find the
cause of refrigerant
leakage, and correct it.
Air filter
or condenser is
soiled.
Any obstacle
near the intake or exhaust
sections
The room
temperature is higher
than 45℃.
YES
YES
NO
NO
NO
Is the refrigerant
amount normal?
YES
NO
00_PB00540A_M10.indb 115 2023/08/09 12:59:08