12
Delfield
6. Remove the solenoid valve from the refrigeration unit.
7. Reverse the above steps to install a replacement
solenoid coil or replacement solenoid valve.
PRESSURE TRANSDUCER
1. Disconnect power from the refrigeration unit.
2. Remove the louvered access end panel as described
in COVERS AND PANELS.
3. Tag and disconnect the wiring harness from the
pressure transducer (Figure 13).
4. While holding pressure transducer mount, use pliers
to remove the pressure transducer from the Schrader
access valve.
5. Reverse the above steps to install a replacement
pressure transducer. Apply leak lock to the pressure
transducer threads before installation.
BOX TEMPERATURE SENSOR
1. Disconnect power from the refrigeration unit.
2. Remove the drawer as described previously.
3. Remove the rear panel as described in COVERS
AND PANELS.
4. Reach inside the box and remove the temperature
sensor mounting screw (Figure 14).
Rear panel
Box temperature
sensor
Temperature sensor
mounting screw
Figure 14. Box Temperature Sensor
5. Tag and disconnect the wiring harness from the box
temperature sensor.
6. Remove the temperature sensor mounting screw and
remove the box temperature sensor from the rear.
7. Reverse the above steps to install a replacement
box temperature sensor.
DISPLAY CONTROL BOARD
1. Disconnect power from the refrigeration unit.
2. Remove the louvered access end panel as described
in COVERS AND PANELS.
3. Remove the front louvered panel as described in
COVERS AND PANELS.
4. Inside the machine compartment, tag and
disconnect the wiring harness from the display
control board (Figure 15).
Display
control board
Nut
Lock
washer
Electric I/O
control board
Screw
Figure 15. Control Boards
5. Remove four nuts and four lock washers from the
display control board.
6. Carefully remove the display control board from the
machine compartment.
7. Reverse the above steps to install a replacement
display control board.
