Manitowoc QR0320A Service Manual page 46

Maintenance
Water Level Probe
1. Loosen the screw that holds the water level probe in
place. The probe can easily be cleaned at this point
without proceeding to step 2.
Disconnect the electrical power to the ice machine
at the electrical disconnect before proceeding.
2. If complete removal is required, disconnect the wire
lead from the control board inside the electrical
control box.
SCREW
WATER
LEVEL
PROBE
WATER
TROUGH
Figure 3-11. Water Level Probe Removal
Water Inlet Valve
The water inlet valve normally does not require removal
for cleaning. Follow the instructions below to determine if
removal is necessary.
1. Set the ICE/OFF/CLEAN switch to OFF. Locate the
water inlet valve (in the compressor area of the ice
machine). It pours water into the water trough.
2. When the ice machine is off, the water inlet valve
must completely stop water flow into the machine.
Watch for water flow. If water flows, remove,
disassemble and clean the valve.
3. When the ice machine is on, the water inlet valve
must allow the proper water flow through it. Set the
toggle switch to ON. Watch for water flow into the ice
machine. If the water flow is slow or only trickles into
the ice machine, remove, disassemble, and clean
the valve.
3-12
Warning
!
WIRE
LEAD
ICE
MACHINE
SIDE
PANEL
Follow the procedure below to remove the water inlet
valve.
Disconnect the electric power to the ice machine at
the electric service switch box and turn off the water
supply before proceeding.
1. Remove the valve shield if necessary.
2. Remove the filter access screws that hold the valve
in place.
NOTE: The water inlet valve can be disassembled and
cleaned without disconnecting the incoming water
supply line to the ice machine.
3. Remove, clean, and install the filter screen.
4. If necessary, remove the enclosure tube access
screws to clean interior components.
FILTER
ACCESS
SCREWS
INCOMING
WATER
LINE
SV1621
Figure 3-12. Water Inlet Valve Removal
RESTRICTOR
(FLAT SIDE MUST
FACE OUT)
MOUNTING
PLATE
FILTER
ACCESS
SCREWS
Figure 3-13. Exploded View of Water Inlet Valve
Warning
!
ENCLOSURE TUBE
ACCESS SCREWS
ELECTRICAL
SOLENOID
VALVE
FITTING
BODY
O-RING
FILTER
SCREEN
Section 3
WATER
INLET
VALVE
SV1622
ENCLOSURE
TUBE
SPRING
PIN
RUBBER
SEAL
SV1623
Part No. 80-1100-3