Ice Compartment Fan - GE Profile PGCS1RKZ Technical Service Manual

Note: When testing these motors:
• You cannot test with an ohmmeter.
• DC common is not AC common.
• Verify 2 voltage potentials:
a. Red to white - power for internal controller
b. Yellow to white - power for fan
• Observe circuit polarity.
• Motors can be run for short periods using a
9-volt battery. Connect the white wire to the
negative (-) battery terminal only. Connect the
red and yellow wires to the positive (+) battery
terminal.
The evaporator fan motor is positioned between the
front and rear fan motor brackets that are attached
to the back of the evaporator cover. The evaporator
cover must be removed to access the fan motor
brackets. (See
Evaporator
Note the position of the fan blade on the motor
shaft and the locations of the fan motor mounting
grommets.
To remove the fan motor, it is necessary to pull
the fan blade off the motor shaft and remove the
two 1/4-in. hex-head screws that hold the rear
bracket to the front bracket. A single wire harness is
connected to the fan motor.
Rear
Bracket
Front
Bracket
Note: To prevent excessive vibration and noise,
be sure to install the fan motor grommets in their
original positions.
.)

Ice Compartment Fan

The ice compartment fan utilizes a 12 VDC motor
that is capable of circulating 10 CFM of freezer air
through the ice compartment. The fan is located
above the evaporator and attached to the back wall
of the freezer with two 1/4-in. hex-head screws. A
single wire harness is connected to the fan motor.
The evaporator cover must be removed to access
the ice compartment fan. (See
Ice Compartment Fan – Basic Operating Modes
The new Profi le Bottom Mount Ice and Water
Refrigerators have multiple basic modes of
operation:
• Ice fan duty cycle's are 100% or 50% based on
temperature settings. (Twenty minutes on/off
time during 50% duty cycle.)
• Ice Hardening mode: Fan on high speed, while
compressor is on.
• Ice Storage mode: Fan on low speed, while
compressor is on.
• Fan speed and on-time are calculated with a
multitude of algorithms.
• Changes to the time and speed can vary.
• Changing the freezer temperature settings will
prompt new calculations.
• Ice fan is off when the compressor is off and
during all phases of defrost. (Defrost, Dwell &
Post-dwell)
Abnormal Modes
• When the unit is in liner protection mode, the ice
compartment fan will run in low speed (along
with the evaporator fan in low speed).
• If the fresh food damper has been open for 2
hours continuously and the unit is in ice storage
mode, the ice compartment fan will turn on at
low speed and run until the damper closes.
Check for 12 VDC on main control board locations
J2-7 to J2-8.
AIR DUCT
BLOWER
13.6 V RED
BLACK/WHITE
– 44 –
.)
Evaporator
TAN
MAIN CONTROL BOARD
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