SiAU18-715 Caution for Diagnosis
Troubleshooting 301
1. Caution for Diagnosis
1.1 Troubleshooting with the Operation Lamp (RA Indoor Unit)
The operation lamp blinks when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor
malfunctions, disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units.
In either case, conduct the diagnostic procedure described in the following pages.
Location of
Operation Lamp
In case of In case of
FTK(X)S 20 D Series FTK(X)S 50/60/71 F Series
FTK(X)S 25/35 E Series
In case of
FDXS 25/35/50/60 Series
CDXS 25/35/50/60 Series
In case of
FVXS 25/35/50 F Series
In case of
FLXS 25/35/50/60 B Series
(R4298)
ON/OFF
OPERATION lamp (green)
Operation lamp (green)
(R6169)
OPERATION lamp (green)
(Q0340)
(R6843)
OPERATION lamp (green)
OPERATION lamp (green)
(Q0341)
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