Haier AS50TDBHRA - Trouble Shooting Guide; Common Operational Issues; Multiple Checkpoints

Printed circuit board connector wiring diagram
11 Domestic air conditioner
6. Printed circuit board connector wiring diagram
Connectors
PCB(1) (Control PCB) For 18k / 24K
1) CN9 Connector for fan motor
2) CN6 Connector for heat exchanger thermistor and Room temperature thermistor
3) CN5’ Connector for UP&DOWN STEP motor
4) CN11
CN11’ Connector for RIGHT&LEFT STEP motor
5) CN21
white line CN17(black line) Connector for indoor terminal N and L
6) CN7 Connector for display board
7) CON2
CON3 Connector for ion generator
8) CN23 (red line) Connector for communicate between the indoor board and the outdoor board
9) CN36 Connector for long-range control
10) CN34 Connector for wifi Module
11) CON1 Connector for fresh air
12) CN2 Connector for wired controller
13) CN51 Connector for room card
Note: Other designations
PCB(1) (Indoor Control PCB)
1) CN14 Connector for Forced operation ON / OFF switch
2) FUSE1 Fuse 3.15A/250VAC
UNIT MODEL PCB MODEL
AS50TDBHRA
0011800417F(23)
OFF ON
1 A B
2 N_RC RC
3 ON ON OFF OFF
4 ON OFF ON OFF
35 33 26 23
UNIT MODEL MODEL
DISPLAY
0011800387
PCB
J1 OFF OFF ON ON
J2 OFF ON OFF ON
DISPLAY SERIES
325*
/498* 324* 387* 317*
AS50TDBHRA