AirStage ARXB07LALH, Service Manual

Page: 83 / 207

Trouble shooting 9
INDOOR UNIT Error Method:
Wired Remote Controller
Communication Error
Indicate or Display:
Indoor Unit : Operation LED 1 times Flash, Timer LED 2 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E.5 U.1
Error Code : 1 2
Detective Actuators:
Indoor unit controller PCB circuit
Wired Remote Control
Detective details:
Upon receiving the signal more than 1 time from Wired Remote or other Indoor
unit, but the same signal has not been received more than 1 minute.
Check Point 2 : Check Remote and Controller PCB
Check terminal voltage of
controller
PCB Connector. (Power supply for Remote)
If DC12V, Remote Control failure (C
ontroller
PCB is OK) >>> Replace Remote
If DC0V, Controller PCB failure (Remote is OK) >>> Replace
Controller
PCB
- In case of re-installation is done due to removed connector or incorrect
wiring, turn on the power again.
Check Point 1 : Check the connection of terminal
After turning off the power, check & correct the followings.
Indoor Unit - Check the connection of terminal between remote control and Indoor unit, or between Indoor units, and
check if there is a disconnection or short of the cable.
Trouble shooting 9
INDOOR UNIT Error Method:
Wired Remote Controller Token Error
Indicate or Display:
Indoor Unit : Operation LED 1 times Flash, Timer LED 2 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E.5 U.1, Error LED Continuous Flash.
Remote Controller : 1 2
Detective Actuators:
Indoor unit Controller PCB circuit
Wired Remote Control
Detective details:
More than 1 time of Token (Communication between wired remote controllers)
is received, but it was not received more than 1 minute.
OK
DC
Forecast of Cause : 1. Terminal connection abnormal 2. Wired Remote Control failure 3. Controller PCB failure
Forecast of Cause : 1. Terminal connection abnormal 2. Mis-setting 3. Wired Remote Control failure 4. Controller PCB failure
Check Point 1 : Check the connection of terminal
After turning off the power, check & correct the followings.
Indoor Unit - Check the connection of terminal between remote control and Indoor unit, or between Indoor units, and
check if there is a disconnection or short of the cable.
OK
04-19
Cassette Type CN5 , AS*E 07,09,12,14LACH / AS*A 07,09,12,14LACH Type CN7 , Other CN17
Check Point 2 : Check Remote and Controller PCB
Check terminal voltage of Controller PCB Connector. (Power supply for Remote)
If DC12V, Remote Control failure (Controller PCB is OK) >>> Replace Remote
lIf DC0V, Controller PCB failure (Remote is OK) >>> Replace Conroller PCB
In case of re-installation is done due to removed connector or incorrect
wiring, turn on the power again.
DC
Cassette Type CN5 , AS*E 07,09,12,14LACH / AS*A 07,09,12,14LACH Type CN7 , Other CN17