Misoperation Alarm Indicators - Sanyo C4272R S/C Installation Instructions Manual

07-115 SSHP_II 5/7/07 4:00 PM

7-15. Misoperation Alarm Indicators

A blinking lamp for other than the signal receiving unit
filter 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 control-
ler and dedicated service check lines (854-9-9536-
044-97: 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 7-2
OPERATION TIMER
lamp
* S.C.: Serial communications
Page 77
Lamp
Bright
STANDBY
lamp lamp
Alternately Indoor unit protector is activated.
Alternately Outdoor unit protector is activated.
Concurrent Mis-setting of indoor unit.
Concurrent Mis-setting of outdoor unit.
Service
connector
ALL•
RCU : SUB
PCB CHK.
TEST RUN
RCU : MAIN
NORMAL
Fig. 7-23
Cause of Trouble
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.
Compressor protector is activated.
77
OPERATION lamp
TIMER lamp
STANDBY lamp
FILTER lamp
Fig. 7-24
RC
(WL)