Fujitsu ASYA24LCC - Self Diagnosis Function and Checking Points

Self - diagnosis function and Checking points
Error Indication
Wired remote
controller
Opera
tion
Timer
Small Div. Contents
(Protection)
Diagnosis Method
OFF 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.)
OFF 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.)
OFF 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.)
OFF 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
OFF 0.5 sec
8 times
Wired remote controller
error
Error contents
Transmission
error
When the communication is cut off longer than 1 minutes upon connection.
> Compressor , Outdoor fan : OFF
(If the communication becames normal, they automatically resume operation.
[Diagnosis Point]
- Check wiring
- Controller PCB failure
01
01
13
13
00