Failure Diagnosis By Led Indication - Daikin CTXU25G2V1B Service Manual

Service Check Function
1.2

Failure Diagnosis by LED Indication

The following failure diagnosis can be done by LED indication on the outdoor unit PCB.
1. The outdoor unit has 2 green LED(LED A, LED5) on the PCB.
96
The flashing green LED indicates "in order" condition.
The turned ON or OFF LED indicates the failure related to the microcomputer.
PCB is set upside down (with backside up) to improve its quality.
LED can be visually inspected through a inspection slit.
SiBE12-908
Service Diagnosis