Troubleshooting - Split Type Indoor Unit; Troubleshooting With The Operation Lamp - Daikin FTX25JVEA9 Service Manual

Troubleshooting - Split Type Indoor Unit

1. Troubleshooting - Split Type Indoor Unit

1.1

Troubleshooting with the 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
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
FTK(X)25/35J Series
Operation Lamp
In case of
FTK50/60H Series
FTX50/60H 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.
mode is set later. ( The first set operation mode has priority.)
226
malfunctions, disabling equipment operation.
Operation lamp (green)
Operation stops and operation lamp blinks only for indoor unit which the different operation
Air outlet
Indicator lamps
ON
OFF
In case of
CDX25~60H Series
CDX25~60H Series
Si18-201
(RL029)
Service Diagnosis