Samsung Electronics
5-5
Troubleshooting
5-2-4 When the Outdoor Unit Does Not Operate. (Initial Diagnosis)
1)
Checklist :
(1) Is input voltage normal? (The rating voltage ±10% range)
(2) Is the set temperature of the remote control higher than room temperature in COOL
mode?
(3) Is the POWER IN connector (terminal-tab) linked correctly?
(4) Is the outdoor unit properly connected with the TERMINAL BLOCK connector(5P)?
2)
Troubleshooting procedure
(1) Checking procedures for the indoor unit.
After unplugging out the power cord should be
reconnected within five seconds.
Does the operating lamp blink
YES
YES
NO
NO
NO
!
YES
#
@
NO
YES
!
NO
@
NO
A Room operation
“A”Compreessor or outdoor fan-motor replaced
Power relay is
out of order
Power relay should be
replaced.
PCB should be
checked.
Microcomputer is
out of order.
PCB should be checked.
Room temperature sensor is
out of order
Check as in the procedure "No Power parts"
Refer to page 5-2.
YES
#
Is the room sensor normal register?
10°C
20°C
30°C
17.96k
Ω
12.09k
Ω
8.3k
Ω
Does the timer lamp blink during operation ?
Is the power relay RY71 operated by adjusting the
room temperature?
1) Is the rating voltage ±10% range applied relay between
Terminal Tap(TB71) and RY 71 terminal No
#
2) Is the rating voltage ±10% range applied relay between
Terminal Tap(TB71) andCN 71 terminal No
!
B Room or C Room operating
Proceed to the checking points for the outdoor unit.
Test rod location
Normal
+ -
Condition
Voltage
IC1 Pin No.63
GND
RY73 ON
DC 4.8V
IC1 Pin No.62
GND
RY72 ON
DC 4.8V
DB98_11868A(1)_1 3/3/03 11:17 AM Page 4-3
Содержание MC26AC2-07
Страница 3: ...MEMO Samsung Electronics 1 2 ...
Страница 21: ...MEMO Samsung Electronics 3 14 ...
Страница 25: ...MEMO Samsung Electronics 4 4 ...
Страница 46: ...MEMO 5 21 Samsung Electronics ...
Страница 53: ...MEMO Samsung Electronics 6 7 ...
Страница 54: ...7 1 Samsung Electronics 7 Block Diagrams 7 1 Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT ...
Страница 55: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 ASS Y MAIN PCB DB93 01018A TOP PATTERN ...
Страница 57: ...Samsung Electronics 8 3 BOTTOM PATTERN PCB Diagrams ...
Страница 58: ...8 4 Samsung Electronics 8 2 PCB OUTDOOR UNIT PE M3000 02 ...
Страница 61: ...MEMO Samsung Electronics 8 7 ...
Страница 62: ...9 1 Samsung Electronics 9 Wiring Diagrams 9 1 Indoor Unit ...
Страница 63: ...Samsung Electronics 9 2 9 2 Outdoor Unit ...
Страница 64: ...10 1 Samsung Electronics 10 Schematic Diagrams 10 1 Indoor Unit ...
Страница 66: ...ELECTRONICS Samsung Electronics Co Ltd Mar 2003 Printed in Korea Code No DB98 11868A 1 ...