188
Multi type Air Conditioner
Troubleshooting Guide
Electronic Parts Troubleshooting Guide
❇
Refer to electronic contorol device drawing & schematic diagram.
1. A2UW146FA0/1/2, A2UW166FA0/1, A2UW186FA0, A3UW186FA0/1
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.
Содержание A2UW146FA0
Страница 143: ...Service Manual 143 Schematic Diagram 2 Art Cool Type ...
Страница 144: ...144 Multi type Air Conditioner Schematic Diagram 3 Art Cool Deluxe Type A C MOTOR ...
Страница 145: ...Service Manual 145 Schematic Diagram 3 Art Cool Deluxe Type BLDC MOTOR ...
Страница 147: ...Service Manual 147 Schematic Diagram SLIM DUCT B1 B2 ...
Страница 157: ...Service Manual 157 Schematic Diagram 15 SLIM DUCT B1 B2 ...
Страница 161: ...Service Manual 161 Schematic Diagram 2 Art Cool Type TOP VIEW BOTTOM VIEW ...
Страница 163: ...Service Manual 163 Schematic Diagram TOP VIEW BOTTOM VIEW 3 Art Cool Deluxe Type BLDC MOTOR ...
Страница 164: ...164 Multi type Air Conditioner Schematic Diagram 4 Duct Type High static BH BG chassis Built in type BP chassis ...
Страница 165: ...Service Manual 165 Schematic Diagram Low static BT BT1 chassis ...
Страница 166: ...166 Multi type Air Conditioner Schematic Diagram TOP VIEW BOTTOM VIEW Low static B1 B2 ...
Страница 167: ...Service Manual 167 Schematic Diagram 5 Casset Type 1 way TC Chasis ...
Страница 168: ...168 Multi type Air Conditioner Schematic Diagram 1 way TC1 Chasis TOP VIEW BOTTOM VIEW ...
Страница 169: ...Service Manual 169 Schematic Diagram 4 way TE TF TD chassis 4 way TE1 TH chassis TOP VIEW BOTOM VIEW 58 B ...
Страница 171: ...Service Manual 171 Schematic Diagram VB chassis ...
Страница 172: ...172 Multi type Air Conditioner Schematic Diagram VB chassis TOP VIEW BOTOM VIEW ...
Страница 175: ...Service Manual 175 Schematic Diagram 3 Outdoor Unit 1 Component side ...
Страница 176: ...176 Multi type Air Conditioner Schematic Diagram 2 Solder side ...
Страница 177: ...Service Manual 177 Schematic Diagram 3 Central control PCB 2 Bottom View 1 Top View ...
Страница 178: ...178 Multi type Air Conditioner 4 SUB P W B ASSEMBLY 1 Art Cool Type TOP VIEW BOTTOM VIEW Schematic Diagram ...
Страница 268: ...P No 3828A20097W April 2006 Printed in Korea ...