Troubleshooting For Ra Indoor Unit - Ftxg, Ftxs, Ctxs, Fvxg, Fvxs, Flxs, Fdxs Series; Indoor Unit Pcb Abnormality - Daikin 3MKS50E3V1B Service Manual

Troubleshooting for RA Indoor Unit - FTXG, FTXS, CTXS, FVXG, FVXS, FLXS, FDXS Series

5. Troubleshooting for RA Indoor Unit - FTXG, FTXS,
CTXS, FVXG, FVXS, FLXS, FDXS Series
5.1

Indoor Unit PCB Abnormality

A1
Remote
Controller
Display
Method of
The system checks if the circuit works properly within the microcomputer of the indoor unit.
Malfunction
Detection
Malfunction The system cannot set the internal settings.
Decision
Conditions
Supposed
Causes
270
Wrong models interconnected
Defective indoor unit PCB
Disconnection of connector
Reduction of power supply voltage
SiBE121135
Service Diagnosis