1-1891-188
7-23. Misoperation Alarm Indicators
A blinking lamp for other than the signal receiving unit
fi lter shows that a problem has occurred in the unit, so
make an inspection. (Refer to servicing information in
the service manual, etc.) Also, if wired remote controller
and dedicated service check lines (CV6380230938:
service use) are available, then detailed error
information can be obtained by connecting to the
service connector as shown in the drawing. For
information on how to connect to the signal receiving
unit, refer to the instruction manual that came with the
dedicated service check lines.
Table 1-16
Fig. 1-238
Fig. 1-239
Lamp
OPERATION
TIMER STANDBY
ugirBaC
lbuorT fo esh
lamp lamp lamp
No power supply or mis-wiring of signal receiving unit.
S.C.* errors between the indoor unit’s controller (PCB) and
signal receiving unit.
S.C. errors between indoor and outdoor units.
AlternatelyIndoorunit protector is activated.
AlternatelyOutdoor unit protector is activated.
Compressor protector is activated.
ConcurrentMis-setting of indoor unit.
ConcurrentMis-setting of outdoor unit.
* S.C.: Serial communications
ALL•
RCU : SUB
RCU : MAIN
NORMAL
PCB CHK.
TEST RUN
Service
connector
1. Operation Display
2. Start/Stop button
3. Fan speed button
4. Swing/Wind Direction button
5. Timer setting buttons
6. Reset button
7. Cover
8. Transmitter
9. Remote control sensor
10. Temperature setting buttons
12. Mode Select button
11. Filter button
13. Ventilation button
14. Address button
15. Sensor button
16. Clock button
1
SM830203-04.indb 189 15/10/16 10:45:24