6-17
■
EC17 : When the trouble is found on the part related to ventilator of indoor unit.
Check and replace IC01, IC02
NO
YES
YES
Put off and then reset the power
Replace micom
Check and replace IC06
Check and replace RY77
Replace indoor unit PCB
NO
NO
NO
NO
NO
Is the option switch 1 of indoor unit off?
Is the voltage across RY77 normal?
Check and replace ventilator
Is the voltage of CN6 no.1 and 3 of indoor unit
AC220V~AC240V?
Is the output DC112V, DC5V normal?
Is the wire correctly connected between indoor unit and outdoor unit?
after check of short circuit between indoor unit and ventilator wire, start the wind control and check the
indoor fan and then start the test.
Is IC06 pin no. 10 “LOW”?
Check point :
- Indoor unit PCB
↔
ventilator connector wire, output voltage of indoor unit micom pin No. 5
- Ventilator, DC 12V power, DC5V power, indoor unit option switch.
Is IC06 pin no. 7 “HIGH”?
YES
YES
YES
YES
Samsung Electronics
Trouble Shooting
00152-TSHOO-9 2/1/01 2:00 PM Page 6-17
Summary of Contents for ACH1800E
Page 3: ...1 2 Samsung Electronics MEMO ...
Page 11: ...Samsung Electronics Product Specifications 2 8 Centralized Controller ...
Page 17: ...3 4 Micro Computer Block Diagram Cassette Indoor 3 6 Samsung Electronics ...
Page 18: ...3 5 Micro Computer Block Diagram Outdoor Samsung Electronics 3 7 ...
Page 19: ...3 8 Samsung Electronics MEMO ...
Page 69: ...4 50 Samsung Electronics MEMO ...
Page 76: ...Samsung Electronics 5 7 Disassembly and Reassembly No Part name Procedures Picture Pump ...
Page 108: ...Samsung Electronics 6 21 MEMO ...
Page 119: ...7 11 Samsung Electronics MEMO ...
Page 125: ...8 6 Samsung Electronics MEMO ...
Page 126: ...9 1 9 PCB Diagrams Samsung Electronics 9 1 Main PCB 9 1 1 Indoor Unit 18K 24K ...
Page 129: ...Samsung Electronics 9 4 Indoor Unit 18K 24K 36K 44K ...
Page 132: ...9 7 Samsung Electronics 9 1 2 Outdoor Unit 18K 24K ...
Page 134: ...9 9 Samsung Electronics Outdoor Unit 18K 24K 36K 44K ...
Page 137: ...9 12 Samsung Electronics MEMO ...
Page 139: ...10 2 Samsung Electronics 36K 44K Wiring Diagrams CASSETTE TYPE AIRCONDTIONER ...
Page 141: ...10 4 Samsung Electronics 36K 44K Wiring Diagrams BUILT IN AIRCONDITIONER CODE NO DB68 00866A ...
Page 142: ...11 Schematic Diagrams 11 1 Wired Remote Controller Samsung Electronics 11 1 ...
Page 143: ...11 2 Centralized Controller 11 2 Samsung Electronics ...
Page 144: ...11 3 Indoor Unit 18K 24K Samsung Electronics 11 3 ...
Page 145: ... Indoor Unit 36K 44K 11 4 Samsung Electronics ...
Page 146: ...11 4 Outdoor Unit 18 24K Samsung Electronics 11 5 ...
Page 147: ... Outdoor Unit 36K 44K 11 6 Samsung Electronics ...
Page 148: ...Samsung Electronics 11 7 MEMO ...
Page 150: ...ELECTRONICS Samsung Electronics Co Ltd Jun 2000 Printed in Korea Code No DB81 00152A 4 ...