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SiUS121736EA
Troubleshooting with LED
Service Diagnosis
134
2. Troubleshooting with LED
2.1
Indoor Unit
Operation Lamp
The operation lamp blinks when any of the following errors is detected.
1. A protection device of the indoor or outdoor unit is activated, or when the thermistor
malfunctions.
2. A signal transmission error occurs between the indoor and outdoor units.
In either case, conduct the diagnostic procedure described in the following pages.
CTXG, FTXR series
FVXS series
CTXS/FTXS series
CDXS/FDXS series
Operation lamp
(multi-monitor lamp)
(R24043)
(R23939)
Operation lamp
(green)
(R23940)
Operation lamp
(green)
Operation lamp (green)
(R23941)