Troubleshooting Guide

Air Conditioner Service Manual
12
24K
Note:
OAT: Outdoor Ambient Temperature
OPT: Outdoor pipe temperature
4. Electronic Controller Introduction
1
LED5
2
OAT/OPT connector
3
Discharge sensor
connector
4
Electronic expansion
valve
5
AC/DC fan motor
connector
6
Heater
7
4-way valve
8
Communication wiring
9
L line
10
Fuse
11
N line
12
ODU PCB Mainly relay
13
LED1-LED4