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Troubleshooting with LED SiUS121827E
146 Part 6 Service Diagnosis
2. Troubleshooting with LED
2.1 Indoor Unit
Operation Lamp The operation lamp blinks when any of the following errors is detected.
A protection device of the indoor or outdoor unit is activated, or when the thermistor
malfunctions.
A signal transmission error occurs between the indoor and outdoor units.
In either case, conduct the diagnostic procedure described in the following pages.
FTXR/CTXG Series
CTXS/FTXS Series FDXS/CDXS Series
Operation lamp
(multi-monitor lamp)
(R24043)
(R23939)
Operation lamp
(green)
(R23940)
Operation lamp
(green)
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