Operation
Section 3
3-8
Part Number 020003999 6/14
Operation Checks & Adjustments
ICE DELIVERY SWITCH ADJUSTMENT
To properly adjust the switch, first unplug the power cord
to the unit then remove the merchandiser. This will give
you access to the ice delivery switch located on the left
side of the rocking chute.
Begin by observing the chute while slowly pushing
against the rocking chute. When the ice delivery switch
clicks, measure the distance from the door stops on the
rocking chute bracket to the door. The distance between
the two must be no more than 1/4" (0.64 cm), but no less
than 1/16" (0.16 cm).
The left side of the rocking chute has a tab that pushes
up on the ice delivery switch. To adjust it, use needle
nose pliers and bend the arm of the switch up or down in
order to change the point where the tab makes contact
with the switch arm.
CRUSHED OR CUBED DEFAULT
For MDH Models equipped with Selectable Ice Modules,
this selectable ice option will allow the unit to always
default to either cube or crushed ice or remain at the last
selection. This only applies to control boards 020000875
Rev 7 and up.
How to Set Cube Default
1. Power on the unit by plugging in receptacle and
holding the CUBE button at the same time. CUBE
will flash 2 times. Unit will now change to cube ice
10 seconds after CRUSHED is selected.
How to Set Crush Default
2. Power on the unit by plugging in receptacle and
holding the CRUSHED button at the same time.
CRUSHED will flash 2 times. Unit will now change to
crushed ice 10 seconds after CUBE is selected.
How to Set Last Selection Default
3. Power on the unit by plugging in receptacle and
holding CUBE and CRUSHED at the same time.
CUBE and CRUSHED will flash 2 times. Unit will
now remain in selection of last request.
NOTE: If power is lost to the unit and then powered up
again the unit will retain the last setting and not return to
factory settings.
AGITATION TIMER OPERATIONAL CHECK
For MDH Models equipped with Selectable Ice Modules
there is a Selectable (CRUSHED and CUBE) ice
agitation timer test mode:
1. Press and hold CUBE for over 1 second.
2. While holding CUBE, press CRUSHED three (3)
times. All LEDs will flash indicating test mode.
3. While in the test mode, the agitator motor will cycle
three (3) times, 3 seconds ON and 10 seconds OFF.
4. After the test mode is complete the unit will
automatically reset to the run mode.
NOTE: To disable the test mode before the three (3)
cycles are complete, press the CUBE button.
Door
Stops
Door Lock
Door
Ice
Delivery
Switch
Door
Stops
Door
Door Lock
1/16" to
1/4"
Tab
Switch Arm
Summary of Contents for MDH-302 Series
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