Hoshizaki RM-45-SD Service Manual page 16

DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE
1. Remove the front
frame of the
thermostat using
your fingers.
Instructions to replace Ambient Sensor.
2. Turn 90° both screws to
loosen their cams and the
front panel will detach .
Then, proceed to remove
the thermostat from the
panel, by keeping it
horizontally.
3. Disconnect the
connector of the
ambient sensor
located on the back of
the thermostat, shown
in the picture.
4. Unscrew the two screws
that hold the wires in
place of the ambient
sensor using a precision
flat blade slotted
screwdriver.