Troubleshooting By Indication On The Remote Controller; A0 External Protection Device Abnormality - Daikin VRVII Manual

3. Troubleshooting by
Indication on the Remote
Controller
A0
3.1
Abnormality
Remote Controller Display
A0
Applicable Models
All indoor models
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 to "external ON/
OFF terminal".
Supposed Causes
Actuation of external protection device
Improper field setting
Defective indoor unit PCB
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Troubleshooting by Indication on the Remote Controller

External Protection Device