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SiUS331708EA
Troubleshooting by Error Code
Service Diagnosis
160
4.4
External Protection Device Abnormality
Error Code
A0
Applicable
Models
All indoor units
Method of Error
Detection
Detect open or short circuit between external input terminals in indoor unit.
Error Decision
Conditions
When an open circuit occurs between external input terminals with the remote controller set for
external ON/OFF input.
Supposed
Causes
Activation of external protection device
Improper field setting
Defective indoor unit PCB
Troubleshooting
ON/OFF
input from
outside (mode No.
12, first code No. 1) has
been set to external protection
device input (second
code No. 03) by
remote
controller.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Check the setting state of the
external ON/OFF input by
remote controller.
Ex
ternal
protection device
is connected to terminals
T1 and T2 of the indoor
unit terminal
block.
Replace the indoor unit main
PCB (A1P).
Actuation of external protection
device.
Change the second code No. to
01
or
02
.
YES
NO
NO
YES
Содержание RXSQ24TAVJU
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