Electrolux BEVERAGE CENTER II, Service Manual

Page: 59 / 77

58
5. Check Hold Switch first. With Ejector blades in the
starting position, check terminals “C” and “NC” for
continuity. Replace switch if continuity readings
are open. Check Shut-Off Switch linkage. Then
check terminals “NO” and “C” for continuity with
Ice Maker Control Arm in lowest position. Replace
switch if continuity readings are open. If Hold Switch
and Shut-Off Switch are operative, then replace
Thermostat.
Complaint-Ice Maker Fails to Complete Cycle.
1. With Ejector blades at 10 o’clock position, Hold
Switch Plunger depressed, Check terminals “C”
and “NO” for continuity. Replace switch if continuity
readings are open.
2. With Ejector blades at 12 o’clock position, check
Shut-Off Switch terminals “C” and “NC” for contin-
uity . Replace Thermostat if continuity readings are
open.
3. With Ejector blades at 4 o’clock position, check
Mold Heater and Ice Maker Thermostat for continuity.
Replace heater if continuity readings are open. If
heater shows continuity, replace Thermostat.
4. Check Motor operation with a test cord. Replace
Motor if it fails to start.
Complaint-Ice Maker Fail to Stop at End of Cycle
With the Ejector blades in the starting position, check the
Hold Switch terminals”C” and “NO” for continuity.
Replace the switch if the continuity readings are indicat-
ing a closed circuit.
Complaint-Ice Maker Continues to Eject When
Container is Full.
1. Check for loose linkage to the Ice Maker Control
arm Shut-Off Switch. Switch should open when
arm is in raised position. Adjust, if required.
2. Check Shut-Off Switch terminals “C” and “NO” for
continuity with Ice Maker Control Arm raised.
Replace switch if continuity readings are indicating
a closed circuit.
Complaint-Ice Maker Produces Undersized Ice
Pieces
1. Ensure that Ice Maker mold is level.
2. Check for partial restriction in supply line or Water
Valve Strainer.
3. Ensure that the water pressure to Water Valve is
sufficient. (30 psi min., 100 psi max.)
4 . Ensure that the Water Valve Switch is adjusted for
proper water fill, 90-105 cc’s.
5. Check thermal bond between Thermosat and Mold.
If necessary, rebond with thermal mastic sealer.
Check Mold temperature at a mounting screw. If
temperature is above 15°F, freezer air temperature is
not cold enough to switch Ice Maker Thermostat
to closed position. If Mold is below 9°F, manually start
Ice Maker by rotating Timer gear. If motor fails
to start, check Motor for continuity. If Motor starts,
Thermostat, Shut-Off Switch, or Hold Switch is
inoperative.
4.
To Replace Mold Heater
1. Remove front Cover.
2. Remove Ice Stripper. (Refer to Section “
To
Replace Ice Stripper” on page 56 )
3. Remove three screws that attach Mounting Plate to
Support Housing.
4. Remove three screws that attach Mold to Support
Housing.
NOTE: One of the three screws is attached to the
two Green/Yellow ground wires and another one is
holding the Clamp in place. The third screw is
located in the lower right corner of the Support
Housing.
5. Unscrew wire nut holding three black leads
together and separate them.
NOTE: One black lead is connected to the Mold
Heater. Another is connected to the Thermostat and
the third lead goes to the Hold Switch.
6. Disconnect remaining Mold Heater leadconnected
to brown Motor lead and black Thermal Cut-Out
lead.
7. Separate Mold from Support Housing.
NOTE: Be careful not to destroy the thermostat
gasket located between the mold and support housing.
8. Remove hex head screw holding Ice Maker
Leveling Bracket to Mold.
NOTE: The Mold is crimped in six places, holding
the Mold Heater firmly in the Mold groove. It may be
necessary to use a hammer and screwdriver to
remove the heater from the Mold groove.
9. Use a flat-bladed screwdriver to pry inoperative
heater from Mold groove.
10. Clean remaining thermal mastic sealer from
Mold groove.
11. Apply layer of thermal mastic sealer to Mold groove.
12. Install replacement Mold Heater.
13. Replace parts in reverse order. Ensure that Thermo-
stat gasket is in place. Bond the Thermostat to Mold
with thermal mastic sealer.
NOTE: For best operation, the freezer temperature
should be between -2°F to +4°F.
FAULT DIAGNOSIS
Complaint - Ice Maker Fails to Start
1. Check to see if Ice Maker Control Arm is locked in
raised position.
2. Check terminals from Cabinet wiring to Ice Maker for
open circuit in wiring or components.
3. Check operation of the Maker with test service cord.