5 - 19
5
Mini VRF SYSTEM
Trouble Diagnosis
3. Mini VRF System Alarm Codes
5 - 20
5
Mini VRF SYSTEM
Trouble Diagnosis
4. Mini VRF System Alarm Codes
E12 Start of Auto Address Setting Prohibited Due to Auto Address Setting Being in
Progress
Error Detection Method
Error Diagnosis
It is judged an error if a command to start auto address setting comes from another controller during auto address setting.
For information on the procedures for replacing the Indoor unit control PC board, refer to the manual that is packaged with the
indoor unit service board.
•
1.
2.
1
This occurs in a system that has more than one outdoor unit and operating lines among the indoor/outdoor units
(networked wiring), when an instruction to start auto address setting is given from another controller during the auto
address setting process.
•
When one controller in a networked system is running auto address setting, it is not possible
to start auto address setting from another controller.
Wait until the auto address setting in progress finishes.
1-1
Auto
Address
E13 Error in Indoor Unit Transmitting Signal to Remote Controller
Error Detection Method
Error Diagnosis
It is judged an error when an indoor unit cannot itself receive a signal that it sent to its remote controller(s).
1.
2.
1
Indoor unit control PC board faulty
•
The remote control's wires 1(white) and 2(black) are shorted or opened.
•
Are the remote control's wires 1(white) and 2(black) are shorted or
opened?
Replace the indoor unit control PC board.1-2
1-1
Indoor unit
control
PCB
Correct the wiring
1-2
Yes
No
SM830195-04_Mini VRF SYS.indb 19 15/02/16 18:01:29
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