200
Multi type Air Conditioner
5) Troubleshooting CH21
Ω
Comp
Copper
pipe
Resistance(
Ω
) at 20°C
Resistance(
Ω
) at 20
°
C
0.64
0.64
0.64
Inverter
comp.
V-W
W-U
U-V
Terminal
0.8
0.8
0.8
Constant
comp.
2M
Ω
2M
Ω
2M
Ω
Inverter
comp.
V-GND
W-GND
U-GND
Terminal
2M
Ω
2M
Ω
2M
Ω
Constant
comp.
V
U
W
Ω
Comp
21
DC Peak
• 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.
• 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.
→
Normal : 0.65
Ω
(INV), 0.8
Ω
(Cons.)
→
No difference at each terminal.
5. Check the insulation from water at IPM part.
→
Check the trace of water.
6. Check the IPM circuit.
Troubleshooting Guide
Summary of Contents for A2UW146FA0
Page 143: ...Service Manual 143 Schematic Diagram 2 Art Cool Type ...
Page 144: ...144 Multi type Air Conditioner Schematic Diagram 3 Art Cool Deluxe Type A C MOTOR ...
Page 145: ...Service Manual 145 Schematic Diagram 3 Art Cool Deluxe Type BLDC MOTOR ...
Page 147: ...Service Manual 147 Schematic Diagram SLIM DUCT B1 B2 ...
Page 157: ...Service Manual 157 Schematic Diagram 15 SLIM DUCT B1 B2 ...
Page 161: ...Service Manual 161 Schematic Diagram 2 Art Cool Type TOP VIEW BOTTOM VIEW ...
Page 163: ...Service Manual 163 Schematic Diagram TOP VIEW BOTTOM VIEW 3 Art Cool Deluxe Type BLDC MOTOR ...
Page 165: ...Service Manual 165 Schematic Diagram Low static BT BT1 chassis ...
Page 166: ...166 Multi type Air Conditioner Schematic Diagram TOP VIEW BOTTOM VIEW Low static B1 B2 ...
Page 167: ...Service Manual 167 Schematic Diagram 5 Casset Type 1 way TC Chasis ...
Page 168: ...168 Multi type Air Conditioner Schematic Diagram 1 way TC1 Chasis TOP VIEW BOTTOM VIEW ...
Page 171: ...Service Manual 171 Schematic Diagram VB chassis ...
Page 172: ...172 Multi type Air Conditioner Schematic Diagram VB chassis TOP VIEW BOTOM VIEW ...
Page 175: ...Service Manual 175 Schematic Diagram 3 Outdoor Unit 1 Component side ...
Page 176: ...176 Multi type Air Conditioner Schematic Diagram 2 Solder side ...
Page 177: ...Service Manual 177 Schematic Diagram 3 Central control PCB 2 Bottom View 1 Top View ...
Page 268: ...P No 3828A20097W April 2006 Printed in Korea ...