Panasonic U-26PE1U6 Technical Data & Service Manual page 189

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 indications are given in
Table 1-16. Fig. 1-218 shows the location of the alarm lamps
on the indoor unit.
(See Table 1-16 and Fig. 1-218.)
Table 1-16
Alarm
(OPERATION (TIMER
lamp) lamp)
* S.C.: Serial communications
OPERATION
lamp
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.
(STANDBY
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.
TIMER STANDBY
lamp lamp
Fig. 1-218
Cause of Trouble
Remote control
receiver
1-181
1. Specifications
1