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178 Multi type Air Conditioner
Troubleshooting Guide
1) Troubleshooting CH01, CH02, CH06
Ω
10k
Ω
Check the resistance
Check the voltage
V
2.5Vdc
01
02
06
Indoor air sensor
Indoor inlet pipe sensor
Indoor outlet pipe sensor
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
Normal resistor : 10K
Ω
/ at 25°C (Unplugged)
Normal voltage : 2.5Vdc / at 25°C (plugged)
Normal resistor : 5K
Ω
/ at 25°C (Unplugged)
Normal voltage : 2.5Vdc / at 25°C (plugged)
Normal resistor : 5K
Ω
/ at 25°C (Unplugged)
Normal voltage : 2.5Vdc / at 25°C (plugged)
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Unplug the sensor on Indoor unit PCB.
2. Estimate the resistance of each sensor.
3. If the resistance of the sensor is 10K
Ω
/ 5K
Ω
at 25°C, then sensor is normal.
4. If the resistance of the sensor is 0 K
Ω
or
∞
, then sensor is abnormal.
→
Change the sensor.
5. Plug the sensor on Indoor unit PCB and Power ON.
6. Estimate the voltage of each sensor.
7. If the voltage of the sensor is 2.5Vdc at 25°C, then sensor is normal.
8. If the resistance of the sensor is 0 or 5Vdc, then sensor is abnormal.
→
Repair or Change the PCB.
Содержание A2UQ166FA0
Страница 135: ...Service Manual 135 Schematic Diagram 2 Art Cool Type ...
Страница 136: ...136 Multi type Air Conditioner Schematic Diagram 3 Art Cool Deluxe Type ...
Страница 147: ...Service Manual 147 Schematic Diagram 1 Indoor Unit MAIN P C B ASM 1 Split Type Components Locations DC part AC part ...
Страница 148: ...148 Multi type Air Conditioner Schematic Diagram 2 Art Cool Type TOP VIEW BOTTOM VIEW ...
Страница 150: ...150 Multi type Air Conditioner Schematic Diagram 4 Duct Type High static BH BG chassis Built in type BP chassis ...
Страница 151: ...Service Manual 151 Schematic Diagram Low static BT BT1 chassis ...
Страница 152: ...152 Multi type Air Conditioner Schematic Diagram 5 Casset Type 1 way TC chasis ...
Страница 153: ...Service Manual 153 Schematic Diagram 4 way TE TF TD chasis 58 B ...
Страница 155: ...Service Manual 155 Schematic Diagram VB chassis ...
Страница 158: ...158 Multi type Air Conditioner Schematic Diagram 3 Outdoor Unit 1 Component side ...
Страница 159: ...Service Manual 159 Schematic Diagram 2 Solder side ...
Страница 160: ...160 Multi type Air Conditioner Schematic Diagram 3 Central control PCB 2 Bottom View 1 Top View ...
Страница 161: ...Service Manual 161 4 SUB P W B ASSEMBLY 1 Art Cool Type TOP VIEW BOTTOM VIEW Schematic Diagram ...
Страница 238: ...P No 3828A22009C October 2006 Printed in Korea ...