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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.)
Alarm
(OPERATION
(TIMER
(STANDBY
Cause of Trouble
lamp) 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.
Stick the alarm message label accompanying the
wireless remote controller on the electrical component
box to indicate the cause of trouble for future reference.
Fig. 7-12
* S.C.: Serial communications
Table 7-1
OPERATION
lamp
TIMER
lamp
STANDBY
lamp
Remote control
receiver
NOTE
07-115 SSHP_II 5/7/07 4:00 PM Page 73