Panasonic E3 - Error Detection Method

5-8
5
E06 Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit
(When indoor unit(s) are connected)
Error Diagnosis
1. Error Detection Method
It is judged an error when there is no transmission (reply) from the indoor unit to the outdoor unit for a period of three minutes.
2.
3
Remove the short
3-2
Is the indoor unit powered off?
Are the DISP Pin and CHK Pin on the indoor unit control PC board
short-circuited?
1-1
2-1
Is the indoor/outdoor operation line shorted, opened,
grounded or has a wrong contact?
3-1
Power on
3-2
Is the wireless remote controller connected to on the indoor unit’s
control PC board?
Correct the wiring
2-1
3-1
3-3
Yes
3-5
Yes
Yes
No
No
No
Replace wireless remote control parts including wiring.
3-3
3-4
3-5
3-4
Disconnect the connector mentioned above on the control PC board
of the indoor unit control PC board, and see whether the E06 goes off
after several minutes. (When doing so, if two remote controllers are
being used and the wireless remote controller is the main remote
controller, set the other remote controller as the main.)
Yes
3-5No
Indoor
units
control
PC board
1 Indoor unit
power
outdoor
2
Indoor/
operation
line
Yes
No
The indoor unit is not turned on.
The DISP Pin of the indoor unit is shorted.
There is a short, open, wrong contact or grounding of the indoor/outdoor operation line.
The signal output control PC board (optional control PC board) inside the indoor unit has failed.
•
•
The thermistor inside the indoor unit is grounded.
Indoor unit control PC board failure Replace board.
•
For information on the procedures for replacing the indoor unit’s control board, refer to the manual that is packaged with
the indoor unit control PCB.
Indoor Unit Control PCB (ACXA73-3081*)
: S-200PE3E5B, S-250PE3E5B
EMG (CN044)
OC (CN040)
JP001
CHK (CN062)
T10 (CN061
)
DISP (CN063)
FAN DRIVE (CN032)
EEPROM (IC010)
POWER LED (D002)
EXCT (CN073)
Indoor Unit Control PCB (ACXA73-3129*)
: S-3650PU3E, S-6071PU3E, S-1014PU3E
OPTION (CN060)
JP001
POWER LED (D002)
EXCT (CN073)
RC
FAN DRIVE (CN032)
EEPROM (IC010)
CHK (CN062)
DISP
T10 (CN061)
SM830281-00_欧州向け R32シングル TD＆SM.indb 8 20/01/09 15:05:11