Sub-Zero Wolf 506UI, Service Manual

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Page 28
Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
Component Access & Removal
4-3
#3752200 - Revision B - May, 2006
Control Panel
The service control switch, evaporator thermostat con-
trol, bin thermostat control, and the transformer are
located behind the control panel. They are all secured
to the control panel with screws that pass through the
front of the control panel. To remove the control panel:
1. Remove the control knobs from control panel.
2. At each end of the control panel, remove the
screws located on the underside of panel. (See
Figure 4-1)
3. Pull the escutcheon off of unit.
4. If present, remove the wire leads to the door switch.
5. Extract screws that secure control panel to the cabi-
net.
6. Carefully pull control panel down, and tilt outward.
7. Remove control panel components by first discon-
necting wire leads from component terminals.
(See
Figure 4-2)
8. Extract screws that pass through the front face of
the control panel and fasten into the component
being removed.
Control Panel Component Testing
Service Control Switch
NOTE: See WARNING at beginning of this section.
The service control switch is a manually operated three
position rotary switch.
To test:
1. Remove wire leads.
2. Use an ohmmeter set on the R x 1 scale.
3. With switch in the “ON” position, check across ter-
minals. (See Figure 4-3)
4. With switch in the “CLEAN” position, check across
terminals.
ON OFF
CLEAN
Figure 4-1. Eschcheon Removal
Figure 4-3. Service Control Switch Test Locations
Figure 4-2. Control Panel Components
Terminal 6
Copper Plate
Terminal 3 Terminal 1
Terminal 2
Eschcheon
Backside Of Control Panel
Service
Control
Switch Evaporator
Thermostat
Bin
Thermostat
Transformer
Screw Locations