Outdoor Unit - Daikin 4MXL-T Series Service Manual

SiUS121827E
2.2

Outdoor Unit

The outdoor unit has a green LED (LED A) and red LEDs (LED 1 ~ LED 5) on the PCB.
When the microcomputer works in order, the LED A blinks, and when the system is in normal
condition, the red LEDs are OFF.
Even after the error is canceled and the unit operates in normal condition, the LED indication
remains.
Refer to page 54 for the location of LED.
Part 6 Service Diagnosis
Service monitor PCB
LED A
LED 1 A
LED 2 1
LED 3 2
LED 4 3
LED 5 4
5
Troubleshooting with LED
R6000447
149