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

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

7-11. Misoperation Alarm Indicators

Alarm indicator lamps on the indoor unit indicate the
error cause if the air conditioner fails to operate
upon being switched on. The possible alarm indica-
tions are given in Table 7-1. Fig. 7-12 shows the
location of the alarm lamps on the indoor unit.
(See Table 7-1 and Fig. 7-12.)
Table 7-1
Alarm
(OPERATION
lamp)
* S.C.: Serial communications
NOTE
Stick the alarm message label accompanying the
wireless remote controller on the electrical component
box to indicate the cause of trouble for future reference.
Page 73
(TIMER (STANDBY
lamp) lamp)
S.C. errors* between the indoor unit's controller (PCB) and the remote
controller.
Compressor protector is working.
S.C. errors between indoor and outdoor units.
Indoor or outdoor thermistor is malfunctioning.
Outdoor unit protector is working.
Indoor unit protector is working.
TEST RUN switch on the operation controller is in ON state.
OPERATION TIMER
lamp lamp
Cause of Trouble
STANDBY Remote control
lamp receiver
Fig. 7-12
73
RC
(WL)