AirStage ARXB07LALH, Service Manual

Page: 141 / 207

Error Contents :
Connection Error
Symptom :
Error Code display [ 1 2 ]
OPERATION LED is flashing.
Details :
Condition of occurrence :
The valid signal has not been received from the convertor more than 90 seconds after the communication line became valid.
Release condition : Valid signal is received from Convertor.
Error Contents :
Address Setting Error
Symptom :
Error Code display [ 2 6 ]
OPERATION LED is flashing.
Details :
Condition of occurrence :
1. No Indoor unit is registered.
Release condition :
1. The key to enter the function selection process is pressed.
TIME< key and TIME> key are simultaneously kept pressed.
2. It automatically initializes by itself. After that, it is released by pressing the key to enter the function selection process.
Trouble shooting 78
Trouble shooting 79
Cause 1 : Connection failure
Check power to the convertor.
Check connection of remote control line between controller and convertor.
OK
Cause 1 : Setting failure
Register Indoor units again by entering to the function selection mode.
(Keep pressing TIME< key and TIME> key.
(Refer to the installation manual for the remote controller.)
Cause 2 : Check outside cause (Voltage drop or noise, etc.)
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line (Neon bulb or electric equipment that may cause
harmonic wave).
OK
Cause 3 : Remote Controller is defective.
Replace Group Remote Controller.
04-77