Troubleshooting Guide
98 Universal System Air Conditioner
❇
Refer to electronic contorol device drawing & schematic diagram.
■
AUUW126B, AUUW186B
The Product doesn’t operate at all.
Turn off the main power and wait until LED on outdoor PCB is off.
Turn on the main power again.
Does "Beeping" sound is made from the indoor unit?
• Primarily, the operating condi-
tion of Micom is O.K.
• Check CN-DISP1
Check the voltage of power(AC220V/AC240V, 50Hz).
• The voltage of main power.
• The voltage applied to the unit.
• The connecting method of Indoor/Outdoor connecting cable (each color)
• The P.W.B. Ass'y
(Fuse, Noise Filter, Power Transformer, IC01D, IC02D, etc.)
Trouble 1
NO
YES
The operation check of the P.C.B. Ass'y
Procedure
1) The input voltage of power trans-
former.
2) The output voltage of power
transformer.
3) IC01D(7812)
4) IC02D(7805)
5) IC01A(KIA7036)
Specification
1) AC230V ± 30V
: Check the rated voltage
2) 14V ± 3V
3) DC12V
4) DC5V
5) The voltage of micom pin 29
: DC4.5V
↑
Remedy
1) Replace
power transfomer.
2) Replace
power transfomer.
3) Replace IC01D.
4) Replace IC02D.
5) Replace IC01A.
Electronic Parts Troubleshooting Guide
Содержание ABNH186HLAB
Страница 66: ...66 Universal System Air Conditioner II Outdoor Units Introduction 67 AUUW B AUUW 0 R410A 69 ...
Страница 80: ...80 Universal System Air Conditioner MPS Inverter SINGLE A 4 Wiring Diagrams AUUW126B UU12 WUEB ...
Страница 120: ...Electronic Control Device 120 Universal System Air Conditioner Main P C B ASM A 6871A10209 B 58 Ceiling Cacsette Type ...
Страница 121: ...Electronic Control Device Service Manual 121 Ceiling Duct Type BH Series ...
Страница 122: ...Electronic Control Device 122 Universal System Air Conditioner BG BR Series ...
Страница 123: ...Electronic Control Device Service Manual 123 VE Series Ceiling Floor ...
Страница 124: ...Electronic Control Device 124 Universal System Air Conditioner VB Series ...
Страница 125: ...Service Manual 125 V Schematic Diagram Ceiling Cacsette Type 126 Ceiling Duct Type 127 Celing Floor 128 ...
Страница 126: ...Schematic Diagram 126 Universal System Air Conditioner Ceiling Cassette Type ...
Страница 127: ...Schematic Diagram Service Manual 127 Ceiling Duct Type ...
Страница 128: ...Schematic Diagram 128 Universal System Air Conditioner Ceiling Floor ...
Страница 180: ...Exploded View Replacement Parts List 180 Universal System Air Conditioner 152312 135314 137211 268712 146811 PT HFA C ...
Страница 181: ...Exploded View Replacement Parts List Service Manual 181 152312 135314 146811 137211 268712 135802 PT HDA C ...
Страница 183: ...P No 3828A22009B Printed in Korea ...