Troubleshooting With Led; Indoor Unit; Outdoor Unit - Daikin FTXS30LVJU Service Manual

Troubleshooting with LED

1. Troubleshooting with LED

1.1

Indoor Unit

Operation Lamp 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
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.
FTXS series
(Ex. 09/12 class)
Service Monitor
The indoor unit has one green LED (LED A) on the control PCB. When the microcomputer works in
order, the LED A blinks.
1.2

Outdoor Unit

The outdoor unit has one green LED (LED A) on the PCB. When the microcomputer works in order,
the LED A blinks.
89
malfunctions.
FDXS series
Operation lamp
(green)
(R13534)
SiUS091133
Operation lamp
(green)
(R16589)
Service Diagnosis