33
Check code Abnormal point and detection method
Judgment and action
E9
(6841)
Indoor/outdoor unit communication
error (Transmitting error) (Outdoor unit)
1
Abnormal if “0” receiving is detected 30
times continuously though outdoor con-
troller circuit board has transmitted “1”.
2
Abnormal if outdoor controller circuit
board could not find blank of transmis-
sion path for 3 minutes.
1
Indoor/outdoor unit connecting
wire has contact failure.
2
Defective communication cir-
cuit of outdoor controller circuit
board
3
Noise has entered power supply.
4
Noise has entered indoor/ out-
door unit connecting wire.
1
Check disconnection or looseness of indoor/
outdoor unit connecting wire.
2
–
4
Turn the power off, and on again to
check. Replace outdoor controller circuit
board if abnormality is displayed again.
EF
(6607
or
6608)
Non-defined check code
This code is displayed when non-defined
check code is received.
1
Noise has entered transmission
wire of remote controller.
2
Noise has entered indoor/ out-
door unit connecting wire.
3
Outdoor unit is not inverter
model.
12
Turn the power off, and on again to check.
Replace indoor controller board or outdoor
controller circuit board if abnormality is dis-
played again.
3
Replace outdoor unit with inverter model.
Case
E8
(6840)
Indoor/outdoor unit communication
error (Signal receiving error)
(Outdoor unit)
Abnormal if outdoor controller circuit board
could not receive anything normally for 3
minutes.
1
Contact failure of indoor/out-
door unit connecting wire
2
Defective communication cir-
cuit of outdoor controller circuit
board
3
Defective communication circuit
of indoor controller board
4
Noise has entered into indoor/
outdoor unit connecting wire.
1
Check disconnection or looseness of indoor/
outdoor unit connecting wire of indoor or out-
door units.
2
–
4
Turn the power off, and on again to
check. Replace indoor controller board or
outdoor controller circuit board if abnor-
mality is displayed again.
E6
(6840)
Indoor/outdoor unit communication
error (Signal receiving error)
1
Abnormal if indoor controller board could
not receive any signal normally for 6
minutes after turning the power on.
2
Abnormal if indoor controller board could
not receive any signal normally for 3
minutes.
3
Consider the unit as abnormal under
the following condition; When 2 or more
indoor units are connected to an out-
door unit, indoor controller board could
not receive a signal for 3 minutes from
outdoor controller circuit board, a signal
which allows outdoor controller circuit
board to transmit signals.
Note: Check LED display on outdoor controller
circuit board. (Connect A-Control service
tool (PAC-SG50ST))
Refer to EA–EC item if LED displays EA–AC.
1
Check disconnecting or looseness of indoor/
outdoor unit connecting wire of indoor unit or
outdoor unit.
Check all the units in case of twin indoor unit
system.
2
–
4
Turn the power off, and on again to check.
If abnormality generates again, replace
indoor controller board or outdoor
controller circuit board.
5
Turn the power off, and detach fan motor
from connector (CNF1,2). Then turn the
power on again.
If abnormality is not displayed, replace fan
motor.
If abnormality is displayed, replace outdoor
controller circuit board.
6
Check RS1 on outdoor noise filter board with
tester. If open is detected, replace the board .
Note: Other indoor controller board may have
defect in case of twin indoor unit system.
1
Contact failure, short circuit or
miswiring (converse wiring) of
indoor/outdoor unit connecting
wire
2
Defective transmitting receiv-
ing circuit of outdoor controller
circuit board.
3
Defective transmitting receiv-
ing circuit of indoor controller
board.
4
Noise has entered into indoor/
outdoor unit connecting wire.
5
Defective fan motor
6
Defective rush current resistor
OCH607
Содержание PUZ-HA30NHA5
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