Frigidaire LGUB2642LF2, Service Manual

Page: 60 / 187

4-16
Test 63C: Harvest Motor System Test
(See Flow Chart Test #63C)
Interactive
This test has the requirement that the ice bucket be
removed from the ice maker chamber prior to entering
this test. Also, if the ice mold is in the “Fill” position
there can be no ice on the evaporator fingers. Push
the ON/OFF key to start the test. The ice mold should
move to the “Freeze” position and the Freezer display
shows the current motor status codes, “0” = no errors
detected. From that moment, the ice mold will alternate
its positions continuously between “Freeze” and “Fill”.
After completing the first full cycle (freeze – fill- freeze)
the Freezer display will show a “1” and icon “good”.
Pushing the ON/OFF key again will stop the harvest
motor. The ice maker controller will monitor functionality
of the “Fill” and the “Freeze” limit switches as well as the
travel time between “Freeze” and “Fill”. If any of the
harvest motor errors are detected, the motor stops. The
Freezer display will show the error code (“2” –harvest
motor time out or “3” -both switches On). After error
condition detection, pushing the ON/OFF key will reset
the Freezer display and restart the test.
Test 64C: Software Revision (XX) ID
The current ice maker controller firmware revision ID
(two digits: from 01 to 99) is saved by ice maker and
displayed on Freezer display when the test is entered.
No Ice Conditions
To diagnosis a no ice condition, follow the steps in
section 6 “Ice Bin Housing Removal”. This will allow
access to the determine the condition of the ice mold,
and so the following flow charts can be used to assist in
diagnosis.
Flow Chart No Ice #1- Mold in Freeze position (Left) and
frozen solid.
NOTE: At the start of Flow Chart 1 it will ask you to check
test 48C (Freezer recovery Mode) if you get a “1” in the
freezer temp window the product is not in recovery mode
and you should proceed through flow chart #2 to #6
listed below. If the freezer temp window is displaying a
“Fr” the product is in freezer recovery mode. In recovery
mode the EEV valve is only open enough to maintain a
cold enough temperature in the ice maker compartment
to prevent the ice from melting. The control system
is diverting the bulk of the refrigerant to the freezer
evaporator the pull the product temperature down to the
set temperature. The product can go into recovery mode
for a number of reasons.
1.
Freezer door is not sealing all the way around.
2. Freezer evaporator is not defrosting.
3. Evaporator fan motor is not running.
4. There is a problem in the sealed system,
a. Low charge
b. Inefficient compressor
c. Partly restricted sealed system.
5. There is a problem in the product control system.
(You will need to enter the product test mode to
check the product control system see page 3-7.)
Flow Chart No Ice #2 - Mold in Freeze position (left) not
frozen solid with water in mold.
Flow Chart No Ice #3 - Mold in Freeze position (left) no
water or ice in mold.
Flow Chart No Ice #4 - Mold in fill position with ice cubes
in mold.
Flow Chart No Ice #5 - Mold in Fill position with no
water.
Flow Chart No Ice #6 - Mold in intermediate position.
Ice Maker (Finger Evaporator Fresh Food Compartment)