62 Room Air Conditioner
Troubleshooting Guide
5
• Wrong or missing wiring between indoor and outdoor unit cable
• Defect of communication components in indoor pcb assembly
• Defect of communication components in outdoor pcb assembly
• Defect of power supply components in outdoor pcb assembly
• No ground connection in air conditioner unit
(affected by noise in power source)
Communication Error
Wiring connection
Is right ?
Is the voltage of T/Block
,
in outdoor about
AC 220/240V ?
YES
No
Indoor
Outdoor
1(BR) 1(BR)
2(BL) 2(BL)
3(GN/YL) 3(GN/YL)
4(RD) 4(RD)
No
Check power connector
Is not connected to the
T/Block in indoor unit.
Check flow
Is the voltage of GND & DC5V in
Outdoor pcb about DC 5V ?
YES
No
Check FUSE, NF01/02J, PTC,
Power Module, BD-01S in
Outdoor pcb assembly
Communication circuit of indoor
& outdoor pcb Is right ?
YES
No
Check IC01K, IC02K,D01K~D03K,
ZD01K~ZD03K, R01K~R10K,
C01K~C04K
Ground connection is installed ?
(power outlet or outdoor chassis)
YES
No
Install ground connection from outdoor
unit. (In case power outlet has no earth
port)
Earth port
Description
Cause of error
Error code
Содержание AS-W0964DH0
Страница 64: ...Service Manual 69 Schematic Diagram Models AS W1865DH0 AS W1825DH0 Models AS W096E1G0 AS W126E1G0 ...
Страница 66: ...Service Manual 71 BOTTOM VIEW TOP VIEW Schematic Diagram Models AS W0964DH0 AS W0964GH0 ...
Страница 70: ...Service Manual 75 Schematic Diagram DISPLAY ASSEMBLY 6871A20574A 6871A20624A ...
Страница 84: ...P No 3828A20462G October 2006 Printed in Korea ...