Caution For Diagnosis - Daikin F-Series Service Manual

Caution for Diagnosis

1. Caution for Diagnosis

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
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 In case of
Operation Lamp FTKS 25/35 D Series
FTXS 25/35 E Series
In case of
FDKS 25/35 E Series
FDK(X)S 25/35 C Series
CDXS 25/35 E Series
Caution: Operation stops suddenly. (Operation lamp blinks.)
Cause of above trouble could be "Operation mode butting".
Check followings;
Are the operation modes all the same for indoor units connected to Multi system outdoor unit?
If not set all indoor units to the same operation mode and confirm that the operation lamp is not
blinking.
Moreover, when the operation mode is in "Auto", set all indoor unit operation mode to "Cool" or
"Heat" and check again if the operation lamp is normal.
If the lamp stops blinking after the above steps, there is no malfunction.
HOperation stops and operation lamp blinks only for indoor unit which the different operation
mode is set later. (The first set operation mode has priority.)
102
malfunctions, disabling equipment operation.
OPERATION lamp (green)
ON/OFF
(R4298)
OPERATION lamp (green)
(Q0340)
SiEN12-710A
Service Diagnosis