Sanyo CH4242 User Manual
Page 58
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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)
Alarm
(OPERATION
(TIMER
(STANDBY
Cause of Trouble
lamp)
lamp)
lamp)
O
●
●
S.C. errors* between the indoor unit’s controller (PCB) and the remote
controller.
●
O
●
Compressor protector is working.
●
●
O
S.C. errors between indoor and outdoor units.
O
O
●
Indoor or outdoor thermistor is malfunctioning.
O
●
O
Outdoor unit protector is working.
●
O
O
Indoor unit protector is working.
O
O
O
TEST RUN switch on the operation controller is in ON state.
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.
Fig. 7-12
*
S.C. : Serial communications
Table 7-1
2000_M_I
OPERATION
lamp
TIMER
lamp
STANDBY
lamp
Remote control
receiver