Self-diagnosis function table (Flashing LED Display)
Applicable model : ASY18LSBCW
* Detailed Trouble Display (secondary level) can be indicated by pressing Test Operation button.
ERROR CONTENTS
Error
Operation
Timer
Error
Operation
Timer
Serial signal
Normal
1 sec
Serial reverse signal error
0.1sec
0.5sec
When a signal is not read continuously for 10 secs
from power relay ON immediately after operation starts
>>Cooling 0 code transmission, automatic reset
When a signal is not read for 20 secs thereafter
>>Trouble display continues and power relay OFF
>>Permanent stop
When a signal is not read continuously for 10 secs
from power relay ON immediately after operation starts
>>Cooling 0 code transmission, automatic reset
When a signal is not read for 20 secs thereafter
>>Trouble display continues and power relay OFF
>>Permanent stop
error
blinking at operation start up
blinking
2 times
Signal reverse signal error
0.1sec
0.5sec
during operation
blinking
3 times
Serial forward signal error
0.1sec
0.5 sec
Normal Serial Forward Signal can not be
at operation start up
blinking
4 times
received more than 10 secs
>>Releases when it becomes normal
Serial forward signal error
0.1sec
0.5sec
Normal Serial Forward Signal can not be
during operation
blinking
5 times
received more than 10 secs ( after receiving
effective forward transfer signal)
>>Releases when it becomes normal
Indoor unit
0.5sec
0.1sec
Indoor temperature
0.1sec
0.5sec
Thermistor detection value is open when
thermistor
2 times
blinking thermistor open
blinking
2 times
AC plug is inserted
error
>>Releases when value becomes normal
Pipe thermistor
0.1sec
0.5sec
Thermistor detection value is open or short
open or short
blinking
3 times
when AC plug is inserted
>>Releases when value becomes normal
Outdoor unit
0.5sec
0.1sec
Discharge thermistor
0.1sec
0.5sec
Thermistor detection value is open or short
thermistor
3 times
blinking open or short
blinking
2 times
error
>>Outdoor unit stops
Releases when it becomes normal
Heat exchanger
0.1sec
0.5sec
Thermistor detection value is open
thermistor open
blinking
3 times
>>Outdoor unit stops
Releases when it becomes normal
Outdoor temperature
0.1sec
0.5sec
Thermistor detection value is open or short
thermistor open or short
blinking
4 times
>>Outdoor unit stops
Releases when it becomes normal
Indoor unit
0.5sec
0.1sec
Forced automatic SW
0.1sec
0.5sec
Forced Auto SW is ON for more than
control error
4 times
blinking welded
blinking
2 times
10 secs continuously
>>Error is indicated while it is ON
Normal Operation other than error indication
Main relay welded
0.1sec
0.5sec
Serial Reverse Signal is received 1 min.
blinking
3 times
after Main relay becomes OFF
>>Error is indicated while serial reverse
signal is input on normal operation
Normal operation except error indication
Power interruption error
0.1sec
0.5sec
50/60Hz is not detected after 4 secs of
blinking
4 times
power ON.
>>Error is indicated and unit is stopped
Trouble Display (primary)
Detailed Trouble Display (by Test Button)
Detailed Error Item
In
do
or
In
do
or
In
do
or
In
do
or
In
do
or
O
ut
do
or
O
ut
do
or
O
ut
do
or
2004.10.29
5