If Cover Ice Route Moor(Geard Motor) Is Not Working Normally - Samsung RF267AE series Service Manual

TROUBLESHOOTING

4-2-15. If Cover Ice Route Moor(Geard Motor) is not working normally

Caution
1. When replacing the Cover Ice Motor, pull out the plug to avoid an electric shock.
2. Be careful! When disassemble the Cover Ice Motor, spring can jumped out and may cause personal injury.
3. Motor will rotate continuously when the Motor Switch is not sensed.
☞ Checking Mehod of Cover Ice Route Motor
Resistance
(Make sure to work after Power Off)
The Resistance is variable according to
the input voltage.
CN73 and CN74 combined and use same
connector(13P)
CN70#9(RED) ↔ 13P#9(Blue)
** 0Ω: Short trouble / ∞Ω: Open trouble
When the MOTOR
rotates.
Operating Condition of Dispenser
Open/Close
CN50 - Switch 1,2 Operating
Close
Ice Route Switch 1
0V
CN50 - "9" (Purple)
Ice Route Switch 2
0V
CN50 - "10" (White)
① Main PCB - Check the wire OPEN/SHORT between the Cover Ice Motor Rotation sensing switches.
② Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB.
③ Replace the MAIN PCB or the Dispenser Cover Motor.
Does GEARED MOTOR
work properly?
Is Cubed or Crushed
Ice mode selected on the
LED PANEL?
Is the DISPENSER
switch selected?
Does the wiring at the
both sides of motor connected
Is the AC input voltage
applied to the both ends
of the motor?
① CN73 and CN74 combined and use same connector(13P).
Check 13P-"9" Connector / Re-connect
② Check the short/open for the SSR75 of Cover Ice Motor on Main PCB.
③ Check the resistance of parallel Connector 13P-" 9" , CN70-" 9" .
(Definitely plug out prior to repair)
Is the sensing
SWITCH connection
pressed area normal when
motor rotates?
Are the voltage
ing Open
REG1 Heater Sink and CN50-"9",
"10" normal?
5V 0V
5V 0V
82
Start
No
Replace the MOTOR
Yes
No
Cubed or Crushed Ice is selected
Yes
on the LED PANEL PCB
No
Select the DISPENSER switch
Yes
No
properly?
Check the WIRE
Yes
Yes
Check the MOTOR/Check any
No
interference on MOTOR rotation
No
normal?
Check/Repair the Housing
Yes
connector
No
Is the switch
Check/Repair the Motor Rotation
Yes
pressing area
Yes
No
Normal