A0 Error Of External Protection Device; Method Of Error Detection; Error Decision Conditions - Daikin R71FUV1 Service Manual

Troubleshooting by Remote Controller
A0
3.4
Device
Remote Controller Display
A0
Applicable Models
FCQ, FMCQ

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
Error of External Protection
Si20-701_B
79