4-22) If Ice Route Motor Is Not Working Normally - Samsung RH25H561 Series Service Manual

TROUBLESHOOTING

4-22) If Ice Route Motor is not working normally

Caution
1. When replacing the Ice Route Motor, pull out the plug to avoid an electric shock.
2. Be careful! When disassemble the Ice Route 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.
When the MOTOR
rotates.
Operating Condition of Dispenser
Open/Close
CN90 - Switch 1,2 Operating
Close
0V
Ice Route Swi t ch 1 CN30 #12
0V
Ice Route Swi t ch 2 CN30 #13
① Main PBA - Check the wire OPEN/SHORT between the Ice Route Motor Rotation sensin switches.
② Check the Short of Ice Route Motor Control Circuit SSR75 in the MAIN PBA.
③ Replace the MAIN PBA or the Dispenser Cover Motor.
Does GEARED MOTOR
Crushed Ice mode selected on the
Is the DISPENSER
Does the wiring at the
both side of motor connected
Is the AC input voltage
applied to the both ends
① Check the voltage between CN72 #1 & CN102 #1 is applied .
② Check the SSR75 SHORT/OPEN of Ice Route Motor control circuit in the MAIN PBA.
③ Check any SHORT/OPEN of wiring connections between PBA CASE and MAIN PBA.
NOTE. <Make sure that the plug is tuned off before you work, Check the Resistance value>
SWITCH connection
pressed area normal when
Open
0V Are the voltage of
CN90 #1 & #2 normal?
5V
Start
NO
work properly?
YES
Is Cubed or
NO
Display PANEL?
YES
NO
switch selected?
YES
NO
properly?
YES
NO
of the motor?
NO
Is the sensing
NO
normal?
YES
Is the switch
NO
motor rotates?
YES
NO
NO
66
Replace the MOTOR
Select cubed or crushed
Ice
Select the DISPENSER
switch
Check the WIRE
Check the MOTOR/Check any
interference on MOTOR rotation
Check/Repair the Housing
connector
Check/Repair the Motor Rotation
pressing area
Normal