Troubleshooting Guide
Service Manual
93
5) Troubleshooting CH21
U-V
V-W
W-U
U-GND
V-GND
W-GND
2M
Ω
2M
Ω
2M
Ω
1.843
1.893
1.812
1.08
1.12
1.09
Terminal 5KD240XBA
5JD420XBB
Resistance(
Ω
) at 20
°
C
Inverter Comp.
Terminal
Resistance(
Ω
) at 20
°
C
Ω
Comp
Copper
pipe
V
U
W
Ω
Comp
21
DC PEAK
(IPM Fault)
• Instant over current
• Over Rated current
• Poor insulation of IPM
• An instant over current in the U,V,W phase
- Comp lock
- The abnormal connection of U,V,W
• Over load condition
- Overcharging of refrigerant
Pipe length.
Outdoor Fan is stop
• Poor insulation of compressor
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Check the wire connection. (U,V,W)
2. Check the load condition. (Refrigerant, Pipe length, ...) Adjust the load condition
3. Check the electricity leakage of the compressor. Normal : Over 2M
Ω
.
4. Check the resistance of compressor.
5. Check the IPM circuit.(Continue next page)
Содержание ABNH366GLAC
Страница 64: ...64 Universal System Air Conditioner II Outdoor Units Introduction 65 AUUW C R410A 67 ...
Страница 72: ...72 Universal System Air Conditioner Inverter SINGLE A AUUW368C AUUW368C1 3 Wiring Diagrams ...
Страница 73: ...Service Manual 73 Inverter SINGLE A AUUW42 48 608C ...
Страница 107: ...Electronic Control Device Service Manual 107 Main P C B ASM A 6871A10209 B 58 Ceiling Cacsette Type ...
Страница 108: ...Electronic Control Device 108 Universal System Air Conditioner BG BR Series Ceiling Duct Type ...
Страница 109: ...Electronic Control Device Service Manual 109 VK VL Series Ceiling Suspended ASM 6871A10025 ASM 6871A10186 ...
Страница 110: ...Electronic Control Device 110 Universal System Air Conditioner Outdoor Unit 1 Component side ...
Страница 111: ...Electronic Control Device Service Manual 111 2 Solder side ...
Страница 113: ...Schematic Diagram Service Manual 113 Ceiling Cassette Type ...
Страница 114: ...Schematic Diagram 114 Universal System Air Conditioner Ceiling Duct Type ...
Страница 115: ...Schematic Diagram Service Manual 115 Ceiling Suspended ...
Страница 116: ...Schematic Diagram 116 Universal System Air Conditioner G G N L N L C 3 C 2 C 4 C 1 Outdoor Unit ...
Страница 154: ...P No MFL30301501 Printed in Korea ...