Samsung Electronics
4-15
■
EC11 : When the trouble is found on the part related to the fan motor of outdoor unit.
Trouble Shooting
Check point :
- Outdoor unit PCB relay defect
- Output of outdoor unit micom
- Outdoor unit fan motor defect
- Defect of IC07 of outdoor unit PCB
NO
YES
YES
NO
NO
NO
NO
Check and replace
the related part
YES
NO
NO
YES
YES
YES
YES
Is the power source normal? AC220~240 50Hz
Is the wire harness for motor connection good?
Is the terminal contact of fan motor condenser good?
Does the outdoor fan motor changes to mild
and strong wind during the cooling
operation?
Do the RY73, RY74 operate?
Normal
Check and replace
the micom
Check and replace
the relay
Check and replace
IC07
Replace PCB
Is the wind volume output pin of micom high
when each wind control is operation?
Is the voltage across the PCB relay 12V
when the each wind control of micom
is opeating?
Are the pins 11 and 12 of IC07 of outdoor
unit PCB low when each wind control mode
micom is operation?
Is the voltage across the outdoor unit
fan motor AC220~240V?
Check outdoor unit fan motor and replace
3-00216A(1)-TS 5/19/01 10:06 AM Page 4-15
Summary of Contents for UDH4400G
Page 5: ...1 4 Samsung Electronics Outdoor Unit Product Specifications 1420 415 930 840 385 ...
Page 17: ...2 12 Samsung Electronics MEMO ...
Page 27: ...3 10 Samsung Electronics MEMO ...
Page 51: ...4 24 Samsung Electronics MEMO ...
Page 58: ...Samsung Electronics 5 7 MEMO ...
Page 63: ...6 5 Samsung Electronics MEMO ...
Page 66: ...7 3 Samsung Electronics 7 3 Wiring Diagram 7 3 1 Indoor Unit DUCT TYPE AIRCONDITIONER ...
Page 67: ...Samsung Electronics 7 4 7 3 2 Outdoor Unit DUCT TYPE AIRCONDITIONER ...
Page 68: ...7 5 Samsung Electronics 7 4 PCB Diagrams 7 4 1 Indoor Unit PD DH3200 08 ...
Page 71: ...Samsung Electronics 7 8 Parts list 7 4 2 Outdoor Unit PD DH3200 S4 ...
Page 74: ...7 11 Samsung Electronics 7 6 Circuit Diagrams 7 6 1 Wired Remote Controller ...
Page 75: ...Samsung Electronics 7 12 7 6 2 Centralized Controller ...
Page 76: ...7 6 3 Indoor Unit Samsung Electronics 7 13 ...
Page 77: ...7 6 4 Outdoor Unit 7 14 Samsung Electronics ...
Page 79: ...ELECTRONICS Samsung Electronics Co Ltd Apr 2001 Printed in Korea Code No DB81 00216A 1 ...