Mitsubishi Electric SRK100VNPZJX, Technical Manual

Page: 369 / 509

'12 • PAC-T-174
INSPECT I/U
INSPECT I/U
(When 1 or 2 remote controllers are connected)
Keeps flashing Stays OFF
Keeps flashing 2 times flash
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Are 2 units
of remote controller
connected?
Is it set
at the slave remote
controller?
⑴， ⑵
Note (1) Use SW1 to set at
master or slave.
Note (2)
“Slave” is displayed
on the remote
controller LCD.
⑵
Does it
become normal?
Do more than
one indoor units have the
same address?
Are remote
controller wires laid
along high voltage
wires?
Does DM
start 60 seconds later
automatically.
Disconnect the connecting
wire
�
between the indoor
and outdoor unit.
Power supply reset
NO
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
Set one remote controller
for “Master” and the other
for “Slave”
Set SW1 on remote
controller PCB at “Master”.
Set address again. (SW2 on
indoor control PCB)
Separate remote controller
wires from high voltage
wires.
Defective indoor control
PCB
➞
Replace.
Defective remote controller
➞
Change.
2. Error detection method
Communication between indoor
unit and remote controller
is disabled for more than 30
minutes after the power on.
3. Condition of Error displayed
Same as above
4. Presumable cause
• Improper setting
• Surrounding environment
• Defective remote controller
communication circuit
• Faulty indoor control PCB
Note:
If any error is detected 30 minutes after displaying “
WAIT
” on the remote controller, the display changes to
“INSPECT I/U”.
Error code
Remote controller:
LED Green Red
Indoor
Outdoor
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