Error code
Remote controller:
7-segment display:
LED
Green
Red
Indoor
Outdoor
Content
–
82
–
E42
E42-1
Current cut (CM1)
Keeps flashing
Stays Off
Keeps flashing 1 time flash
1. Applicable model
5. Troubleshooting
Outdoor unit
Diagnosis
Countermeasure
Is the
coil resistance and insulation
(megger check) of compressor
motor OK?
Is 15V
of power for control PCB
detected? Is the outdoor fan motor
OK? (Refer the checking method of
15V
in page41)
Do you
have inverter checker for
judging whether inverter PCB is
OK or not?
After power OFF,
Remove the 1-3 layers
of control box
Is the
checked result by measuring
the resistance beween each terminal
of power transistor module OK?
(Are there any short-
circuit?)
Is the
checked result by
inverter checker
OK?
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Save data for 30 minutes before stopping in Mente PC
Does the outdoor fan run ?
Reset power supply and restart
Does E42 recur?
Check and save the data of
operating conditions
Check pressure anomaly
Check the operation of
outdoor fan
Replace compressor.
Check the capillary tube
and stariner of oil separator.
If necessary, replace the
capillary tube and strainer
as well.
Repair it according to the
troubleshooting of E48
Replace inverter PCB or
outdoor fan motor
Check it as much as
possible under the
operating conditions for
30 minutes before error
occurred
Wait and see.
Continue to obain data, if
possible
(Keep connecting the
Mente PC)
Replace power transistor
module
Replace inverter PCB
Replace power transistor
module.
Refer Page 41.
(Remove the power cable
from
compressor and check the
resistance between P-U,
P-V, P-W, N-U, N-V, N-W
respectively.
Replace inverter PCB
2. Error detection method
When anomalously high output
current of inverter is detected
by the current sensormounted in
the power transistor
3.
Condition of error displayed
When 88A or higher output
current of inverter is detected 4
times within 15 minutes.
4. Presumable cause
• Compressor anomaly
• Leakage of refrigerant
• Power transistor module
anomaly
• Anomalous power supply for
inverter PCB
• Outdoor fan motor anomaly
Note:
In case that there is no the insulation resistance anomaly, the compressor anomaly could be considered.
If this anomaly occurs after replacement of power transistor module and/or inverter PCB, try to replace compressor as well.
If the error does not recur, connect the Mente PC and continue to collect data
Summary of Contents for 112KXE6
Page 105: ... 101 Model FDC335KXE6 A PCB003Z035 shows local wining ...
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Page 139: ... 135 PJA012D751 b ...
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