88
TROUBLESHOOTING
4-2-9. When alarm sounds continuously without stop(related with buzzer sound)
Start
Door is ajar
Start
Is door closed
completely?
Is water penetrated
into the door switch?
Is the door
switch unit normal?
Is the connector CN76
inserted correctly?
Is manual operation
/defrost selected?
Does buzzer sounds
when power On again?
Is the input
voltage of main #53,#52,#51
changed at door-open and
close status?
①
If 'ding-dong'sound continuously
②
If 'beep-beep' sounds continuously
Remove causes after comprehending
the conditions of interferance by door
gasket, food etc,
Replace Door S/W
Repair wire connection and
Door S/W
Normal
Recheck and Replace Panel
PCB
MAIN PCB & Door S/W is normal.
Recheck and replace Panel PCB
Seperate the door switch andcheck if
the measured value of unit is
changed from 0
Ω
to
∞Ω
according to switch ON/OFF.
* FF Door Switch is magnetic switch.
(It can be operated when door
magnet is combined with it.)
Replace Door S/W
Connector is not inserted,
Repair disconnect part
Enforce the cancelation the
manual operation/ defrost function
or power On after power Off
Door
FZ
MICOM(#53)
Mid Drawer
MICOM(#51)
FF
MICOM(#52)
Right and
Left
Door & MICOM State
Close
Open
5V(High)
0V(Low)
0V(Low)
5V(High)
0V(Low)
5V(High)
AW3 SM-EN 2011.3.31 2:56 PM 페이지88 in
Summary of Contents for RF4287HABP
Page 86: ...87 TROUBLESHOOTING IPM FREEWHEELING DIODE VOLTAGE VALUE AW3SM EN2011 3 312 56PM페이지87 in ...
Page 96: ...97 TROUBLESHOOTING SPM Internal DIODE Voltage AW3SM EN2011 3 312 56PM페이지97 in ...
Page 98: ...99 TROUBLESHOOTING INVERTER PCB Circuit Diagram AW3SM EN2011 3 312 56PM페이지99 in ...
Page 124: ...125 7 1 Model RFG295AA BETTER 7 WIRING DIAGRAM BLU BLU AW3SM EN2011 3 312 57PM페이지125 in ...
Page 125: ...126 7 2 Model RF4287AA BEST 7 WIRING DIAGRAM AW3SM EN2011 3 312 57PM페이지126 in ...
Page 126: ...127 7 3 Model RFG299AA 7 LCD 7 WIRING DIAGRAM BLU BLU AW3SM EN2011 3 312 57PM페이지127 in ...
Page 127: ...128 7 4 Model RFG294AA SEARS 7 WIRING DIAGRAM AW3SM EN2011 3 312 57PM페이지128 in ...
Page 129: ...130 8 SCHEMATIC DIAGRAM 8 1 2 INVERTER BLOCK RF4287 AW3SM EN2011 3 312 58PM페이지130 in ...
Page 130: ...131 8 2 CIRCUIT DIAGRAM SCHEMATIC DIAGRAM 8 2 1 MAIN AW3SM EN2011 3 312 58PM페이지131 in ...
Page 131: ...132 SCHEMATIC DIAGRAM 8 2 2 INVERTER AW3SM EN2011 3 312 58PM페이지132 in ...