190
Multi type Air Conditioner
Troubleshooting Guide
Turn on the main power.
When in air circulation mode, compressor/outdoor fan is stopped.
Turn off main power.
Check the electrical wiring diagram of Outdoor side.
Check the open or short of connecting wires between Indoor and Outdoor.
Check the sensor for Indoor temperature is attatched as close as to be effected by the
themperature of Heat Exchange (EVA.)
When the sensor circuit for Indoor temperature and connector are in bad connection or are
not engaged, Compressor/Outdoor fan is stopped.
• Check the related circuit of R02H(12.1K), R01H(1K), R04H(6.2K), R03H(1K), C01H(102),
C02H(102), Micom(pin No.
,
).
• Check the Indoor temperature sensor is disconnected or not (about 10K at 25°C).
Check the Relay(RY-PWR, RY-START) for driving Compressor.
• Check the voltage between brown and blue cable of terminal to connect the Outdoor
(About AC220V / 240V).
• Check the related circuit of relay in Outdoor PCB Ass'y.
Operate Cooling Mode by setting the disired temperature of the remote controller is less
than one of the Indoor temperature by 1°C at least.
The Compressor/Outdoor Fan are don't operate
Trouble 3
Check Point
Between Micom(No. 19) and
GND
DC 5V
DC 0V
DC 12V
DC 1V
↓
Between IC01M(No. 10) and
GND
Comp. ON
Comp. OFF
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 ...