LG GR-L247ER Parts List And Instructions Manual page 41

ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD
3. Ice Maker Troubleshooting
* Troubleshooting: it is possibleto confirmby pressingfreezer and refrigerator temperature controlbuttons for more
than 1 second.(ice maker is normal if all lads are on): refer to troublediagnposis function in MICOM
function 2-8 (page 18)
No
Failed DC Power
• Check DC power (5V, 12V).
Failed ice making sensor
, Check the resistance of
both ends (1,2) of ice making
sensor of CONg.
• Defects between ice making
sensor and board
(Pin No. 60 of ICl)
Failed Ice Maker Unit
• Is the resistance of both ends
9,10 of ice ejection motor of
CON9 between t8 and 22_?
• Is ice ejection motor drive circuit
(IC11 and peripheral circuits)
nom_al?
• Defects between Hall IC and
Board (Pin No. 42 of IC1),
• Confirm ice ejection and level
return when pressing
test switch.
-_ Change main PWB I
_{ Replace Ice making 1 Sensor
Replace Ice Maker Unit 1
Replace Main PWB 1
d level return
n test switchis _"%_
pressed for more than 0_ second?../"
"_. Does the bell /
Normal I
Failed ice maker unit test switch
• Are both ends 5,6 of CON9
test switch open?
• Defects between test switch
and board (Pin No. 43 of IC1).
• Are both ends (3,4) of CON9
ice maker stop switch short?
Poor water supply
• Is power applied to water
supply valve?
• Does the water supply
valve work normally?
• Is the water supply line
normally connected?
_ Re,place Ice maker Unit I
Replace water
supply valve I
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