Troubleshooting Guide
112 Universal System Air Conditioner
7) Troubleshooting CH23, CH28
V
23
28
DC Link
Low voltage.
DC Link
High voltage
• DC link volt. is
140Vdc
.
• DC link volt. is
420Vdc
.
• Check the power source.
• Check the components.
• Check the power source.
• Check the components.
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Check the power source.
2. Check the components
(B/Diode, Reactor, PSC Parts )
Summary of Contents for ABNH186HLAB
Page 66: ...66 Universal System Air Conditioner II Outdoor Units Introduction 67 AUUW B AUUW 0 R410A 69 ...
Page 121: ...Electronic Control Device Service Manual 121 Ceiling Duct Type BH Series ...
Page 122: ...Electronic Control Device 122 Universal System Air Conditioner BG BR Series ...
Page 123: ...Electronic Control Device Service Manual 123 VE Series Ceiling Floor ...
Page 124: ...Electronic Control Device 124 Universal System Air Conditioner VB Series ...
Page 126: ...Schematic Diagram 126 Universal System Air Conditioner Ceiling Cassette Type ...
Page 127: ...Schematic Diagram Service Manual 127 Ceiling Duct Type ...
Page 128: ...Schematic Diagram 128 Universal System Air Conditioner Ceiling Floor ...
Page 183: ...P No 3828A22009B Printed in Korea ...