Fan And Motor Disassembly; News Flash; Freezer Fan - LG LMX21981 Series Training Manual

LMX21981xx

FAN and MOTOR DISASSEMBLY

NEWS FLASH

The fan motor is a variable speed DC motor. If it becomes jammed, it will try to start
every thirty seconds for five minutes, and then once every thirty minutes. The input
voltage and signal voltages are measurable.
To clear the ER error code, unplug, repair, and replace the fan motor. Or, if you wait
thirty minutes, the situation will clear itself.
The fan speed is controlled by the sensor temperature. If the signal is interrupted, the
motor will run for five minutes. After that time, the fan will stop and an error code will be
displayed.

FREEZER FAN

V = Voltage
G = Ground
F = Feedback
LMX21981xx
Using a short screwdriver, loosen one
screw in the drain pipe assembly and
another one connected to the motor cover.
Pull the fan blade off its shaft by turning it
counterclockwise as you pull.
WHITE – SUPPLY (Positive)
BLACK – GROUND
PURPLE - SIGNAL (Positive)
While operating:
WH to BLK – Approx. 13.9 V
PR to BLK – Approx. 2 V
Door OPEN or OFF – 0 V
Page 42
REFRIGERATOR
DC
(15 V during ICE+PLUS)
DC
DC
DC
TRAINING MANUAL