Misoperation Alarm Indicators - Sanyo CH2442 Installation Instructions Manual

7-11. Misoperation Alarm Indicators

Alarm indicator lamps on the indoor unit indicate the
error cause when 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, Fig. 7-12)
Table 7-1
Alarm
(OPERATION (TIMER
lamp) lamp)
O
O
O O
O
O
O O
* S.C. : Serial communications
OPERATION
lamp
NOTE
Stick the alarm message label accompanying with the
wireless remote controller on the electrical component
box to find the cause of trouble in case of need.
(STANDBY
lamp)
S.C. errors* between the indoor unit's controller (PCB) and the remote
controller.
Compressor protector is working.
O
S.C. errors between indoor and outdoor units.
Indoor or outdoor thermistor is malfunctioning.
O
Outdoor unit protector is working.
O
Indoor unit protector is working.
O
TEST RUN switch on the operation controller is in ON state.
TIMER STANDBY
lamp lamp
Fig. 7-12
Cause of Trouble
Remote control
receiver
57 S4359146
7 7 7 7 7
RC
(WL)
2000_M_I