Frigidaire LGUB2642LF2, Service Manual

Page: 31 / 187

Electronic Control
3-9
General Information
1. During normal operation, certain components can fail
independently with no cascading effect to other ice and
water related components. These components are listed
below:
a.
Water Valve
b. Auger Motor
c. Cube/crush Solenoid
2. During normal operation, other components fail with a
cascading effect. These components are listed below
with the related disabled components:
a. Fresh Food Door Switch – disables auger motor, cube/
crush solenoid, ice chute door solenoid
b. Paddle Microswitch – disables water valve, auger
motor, cube/crush solenoid, ice chute door solenoid,
automatic
led illumination
c. Ice chute door solenoid – disables auger
motor, cube/crush solenoid
d. Ice chute door microswitch – diables Auger
Motor, cube/crush solenoid
3. During normal operation, the dispenser pocket will be
lit by a pair of LEDs on the ice and water module. The
LEDs can be set to be on 100% of the time or on only
when the paddle is pressed for ice or water.
Verify that the LEDs function properly prior to entering
service mode below.
4. Definitions:
+ – main board located under the refrigerator
behind the lower front panel
UI – User interface above the dispenser pocket
Ice and water module – single paddle sub-assembly
located behind the UI
Diagnosing Ice and Water Dispense Issues
via System Service Mode
Enter service mode 1.
Express-Select™
To enter the service mode, press and hold the
freezer up (
∧ ) and down ( ∨ ) temperature pads
simultaneously for up to ten (10) seconds. Press
fresh food up (
∧ ) to advance thru the menu options;
press ‘power on-off’ to initiate the selected test.
Pro-Select™
To enter the service mode, press and hold ‘control
lock’ and ‘options’ simultaneously for up to ten (10)
seconds. Press ‘+’ on the LCD display to advance
thru the menu options; press ‘power on-off’ to
initiate the selected test.
If service mode cannot be accessed, go to Ice and
2.
Water Flow Chart 1.
Press fresh food (^) to advance thru the menu
3.
options; press ‘power on-off’ to initiate function
Perform the following tests:
4.
8 – Water Valve
10 – Auger Motor
10 – Auger Motor Switch
11 – Cube/Crush Solenoid
23 – Fresh Food Door Switch
28 – Paddle Microswitch
36 – Ice Chute Door Micro-switch only
36 – Ice Chute Door Solenoid & Micro-switch
Follow the direction given below for the flow chart
5.
covering individual failures:
- Fail Test 8 only, go to Ice and Water Flow Chart 2
- Fail Test 10 only, go to Ice and Water Flow Chart 2
- Fail Test 11 only, go to Ice and Water Flow Chart 4
- Fail Test 23 only, go to Ice and Water Flow Chart 5
- Fail Test 28 only, go to Ice and Water Flow Chart 6
- Fail Test 36 (micro-switch) only, go to Ice and
Water Flow Chart 7
- Fail Test 36 (micor-switch and solenoid) only, go to
Ice and Water Flow Chart 8
- Fail LED function only, go to Ice and Water Flow
Chart 9
6. Follow the direction given below for multiple failures:
- Fail Tests 8, 10 and 11, go to Ice and Water Flow
Chart 10
- Fail Tests 10, 11 and 23, go to Ice and Water Flow
Chart 11
- Fail Tests 28, 36 and LED function, go to Ice and
Water Flow Chart 12
Ice and Water Dispense Troubleshooting Guide