Daikin F-Series, Service Manual

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Caution for Diagnosis SiBE12-713
226 Service Diagnosis
1. Caution for Diagnosis
1.1 Troubleshooting with Operation Lamp
The operation lamp flashes 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 20/25/35/50 D Series FTK(X)S 20/25/35 C Series
In case of
FTK(X)S 50/60/71 F Series In case of
FTXG 25/35 E, CTXG 50 E Series
In case of
FDK(X)S 25/35/50/60 C Series
FDK(X)S 25/35 E Series In case of
FVXS 25/35/50 F Series
(R4298)
ON/OFF
OPERATION lamp (green)
(R4297)
ON
OFF
Indicator lamps
Operation lamp (green)
(R6332)
OPERATION lamp (green)
Operation lamp (green)
INTELLIGENT EYE lamp (green)
TIMER lamp (yellow)
ON/OFF switch
Indicator lamps
(R5072)
OPERATION lamp (green)
(Q0340)
(R6843)
OPERATION lamp (green)