Fujitsu AS*12LSBCW User Manual

Self - diagnosis function and Checking points
Large Division Error
Indication
Small Division Error
Indication
Operation
Timer
Large Div.
Contents
Opera
tion
Timer
Small Div. Contents
(Protection)
Diagnosis Method
0.1
sec.
blinki
ng
0.5 sec
2 times
Serial reverse transfer
error at starting up
operation
At the start up, the indoor unit does not receive the signal for 10 consecutive seconds from the time when the
power relay was ON. > Permanent stop after 30 seconds.
[Diagnosis Point]
- Check the indoor/outdoor cable connection (in order). If the cable wiring is not abnormal, measure the
voltage of the outdoor unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis
method.)
0.1
sec.
blinki
ng
0.5 sec
3 times
Serial reverse transfer
error during the
operation
When the indoor unit does not receive the signal for 10 consecutive seconds during the operation > Permanent
stop after 30 seconds.
[Diagnosis Point]
- Check the indoor/outdoor cable connection (in order). If the cable wiring is not abnormal, measure the
voltage of the outdoor unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis
method.)
0.1
sec.
blinki
ng
0.5 sec
4 times
Serial forward transfer
error at starting up
operation
The outdoor unit does not receive the signal for 10 consecutive seconds from the time when the power relay was
ON. > Outdoor unit stops.
[Diagnosis Point]
- Check the indoor/outdoor cable connection (in order). If the cable wiring is not abnormal, measure the
voltage of the outdoor unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis
method.)
ON 1 sec.
blinking
Transmission
Error
0.1
sec.
blinki
ng
0.5 sec
5 times
Serial forward transfer
error during the
operation
When the outdoor unit does not receive the signal for 10 consecutive seconds during the operation >
Outdoor unit stops.
[Diagnosis Point]
- Check the indoor/outdoor cable connection (in order). If the cable wiring is not abnormal, measure the
voltage of the outdoor unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis
method.)
07-03

Fujitsu AS*12LSBCW Specifications

General

Brand	Fujitsu
Model	AS*12LSBCW
Category	Air Conditioner
Language	English