TROUBLE DIAGNOSIS
- 98 -
Problems
Symptom
Causes
Checks
Measures
Remarks
Defective
Buzzer does
Trouble mode indication.
Check trouble diagnosis function.
Repair troubles
Refer to mode
display button.
not sound
indication in
and buttons
function
do not operate.
explanations.
Door Buzzer
Buzzer
Defective connecting lead wire from
Check lead wire associated with door
Repair lead wire.
Check model
continuously
main PCB to door switch.
switch.
with dispenser.
rings or door
Defective freezer compartment door
Refer to door switch in parts repair
Replace Freezer
opening alarm
switch parts.
guide.
compartment door
does not work.
switch.
Bad water/ice
Ice and water
Defective connecting lead wire from
Check Lead Wire associated with lever
Repair lead wire.
dispenser.
are not
Main PCB to lever switch.
switch with a tester.
dispensed.
Defective lever switch parts
Refer to door switch in parts repair guide.
Replace lever switch.
Defective photo coupler IC parts.
Check voltage change at photo coupler
Replace photo
output terminals with lever switch
coupler IC or PCB.
pressed. It is OK if voltage change is
between 0V - 5V.
Defective relay associated with ice
Check relay (RY4, RY5, RY12)
Replace defective
dispense (geared motor, cube, and
with a tester.
relay.
dispenser solenoid).
Defective parts associated with ice
Check resistance of parts with a tester.
Replace defective
dispense (geared motor, cube, and
parts.
dispenser solenoid).
Defective relay associated with water
Check relay (RY7) with a tester
Replace defective
dispense.
relay.
Defective parts associated with water
Check resistance of parts with a tester.
Replace defective
dispenser.
parts.
Содержание GR-B277
Страница 41: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 41 a b c d ...
Страница 50: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 50 ...
Страница 51: ...2 2 Parts list 1 GR L267 G267 P277 EXPLANATION FOR MICOM CIRCUIT 51 ...
Страница 52: ...EXPLANATION FOR MICOM CIRCUIT 52 ...
Страница 53: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 53 ...
Страница 54: ...EXPLANATION FOR MICOM CIRCUIT 54 ...
Страница 55: ...2 3 DISPLAY ASSEMBLY part diagram 1 GR L267 G267 P277 LCD Display EXPLANATION FOR MICOM CIRCUIT 55 ...
Страница 56: ...2 GR L267 G267 P277 LED Display EXPLANATION FOR MICOM CIRCUIT 56 ...
Страница 57: ...3 GR B277 EXPLANATION FOR MICOM CIRCUIT 57 ...
Страница 58: ...2 4 DISPLAY circuit diagram 1 GR L267 G267 P277 LCD Display EXPLANATION FOR MICOM CIRCUIT 58 ...
Страница 59: ...2 GR L267 G267 P277 LED Display EXPLANATION FOR MICOM CIRCUIT 59 PWB ASSEMBLY DISPLAY ...
Страница 60: ...3 GR B277 EXPLANATION FOR MICOM CIRCUIT 60 ...
Страница 63: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 63 ...
Страница 64: ...EXPLANATION FOR MICOM CIRCUIT 64 ...
Страница 69: ...CIRCUIT 69 3854JD1110A ...
Страница 70: ...CIRCUIT 70 3854JD1110A ...
Страница 71: ...CIRCUIT 71 3854JD1110A ...
Страница 119: ...6 BLOCK DIAGRAM TV RADIO 119 ...
Страница 134: ...P No 3828JD8793E FEB 2005 Printed in Korea ...