Loading ...
Loading ...
Loading ...
7-3 Failure diagnosis method of ice maker
Yes
_ormal afterthndreturning t:t_C_ei-_nev_ingJty_
Normal
I I
Defect of power terminal _1
I
• Check DC power (5V,12V)
Defect of ice-making sensor
• Check resistance values of
both ends of icemaking sensor
(Pin for PCB CON2 1,2 PIN)
• Icemaking sensor-Defect
between (PIN NO # 4 of IC1)
boards
Defect of ice-making kit
Resistance values at both
ends of ice-removing motor
(# 7,8 pin of PCB CON2 7,8)
is 18_-22_ ?
° Drive circuit of ice-removing
motor (IC5 and auxiliary
circuit) is normal?
• HALL IC~Defect between
(PIN NO # 20 of 1Cl) boards
• Be sure ice-removing and
returning to the level when
pressing the TEST S/W
Defect of ice-making KIT TEST S/W
• Both ends of TEST S/W
(# 3,6 pin of PCB CON2 3,6)
are at open status?
• TEST SAN ~ Defect between
boards (PIN NO #19 of IC1)
Defect of water supply
• Water supply valve conduct
current?
• Water supply pump normally
operates?
• Water supply line is normally
connected?
Replacementof
MAIN PCB
I
Replacement of Iice-making sensor
Replacement of
ice-making kit
Replacement of
MAIN PCB
I
I
Replacement of Iice-making kit
Replacement of Iwater supply valve
- 20 -
Loading ...
Loading ...
Loading ...