Error Of External Protection Device - Daikin SkyAir RZR-P Series Service Manual

Troubleshooting by Remote Controller
2.6

Error of External Protection Device

A0
Remote
Controller
Display
Applicable All indoor models
Models
Method of Error
Detect open or short circuit between external input terminals in indoor unit.
Detection
Error Decision
When an open circuit occurs between external input terminals with the remote controller set to
Conditions "external ON/OFF terminal".
 Actuation of external protection device
Supposed
 Improper field setting
Causes
 Defective indoor unit PCB
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
External
protection
device is connected to
terminals T1 and T2 of the
indoor unit terminal
block.
NO
Check the setting state of the
ON/OFF input from outside by
remote controller.
External
ON/OFF input
(mode No. 12, first
code No. 1) has been
set to external protection
device input (second
code No. 03) by
remote
controller.
NO
YES
YES
SiUS281117
Actuation of external
protection device.
Change the second code No.
to "01" or "02".
Replace the indoor unit PCB.
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