192
Multi type Air Conditioner
Troubleshooting Guide
• Confirm that the vertical louver is normally geared with the shaft of Stepping Motor.
• If the regular torque is detected when rotating the vertical louver with hands
⇒
Normal
• Check the connecting condition of CN-U/D or CN0L/R Connector
• Check the soldering condition(on PCB) of CN-U/D or CN0L/R Connector
Check the operating circuit of the vertical louver
• Confirm that there is DC +12V between pin
➀
of CN-U/D, CN0L/R and GND.
• Confirm that there is a soldering short at following terminals.
- Between
1
,
2
,
3
and
4
of MICOM
- Between
17
,
18
,
19
and
20
of MICOM
- Between
4
,
5
,
6
and
7
of IC01M
- Between
5
,
6
,
7
and
8
of IC01M
When the louver does not operate.
Trouble 5
If there are no problems after above checks.
• Confirm the assembly condition that are catching and interfering parts in the link of the
vertical louver
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 ...