Troubleshooting With Led; Indoor Unit; Outdoor Unit - Daikin FTKM-U Series Service Manual

Troubleshooting with LED

2. Troubleshooting with LED

2.1

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.
2.2

Outdoor Unit

The outdoor unit has a green LED (LED A) on the PCB.
When the microcomputer works in order, the LED A blinks.
Refer to pages 21, 22, 23 for the location of LED A.
52
malfunctions.
Operation lamp
(green)
(R25231)
Part 6 Service Diagnosis
SiMX042215E