F3D3
Series
Service Manual Component Adjustments / Section 3.1
Questions? Call Franke Technical Support Group For Your Area. Copyright
2012 Franke, Inc. All rights reserved.
3.1 Low Product Sensor Adjustment
[See Section 1.5 for Part Number]
Problem
: False
Low Product Warning
on Control Panel
display, when product is present. [First, ensure product is
present and there isn’t a bridge or void in Hopper near the
sensor.]
1)
Thoroughly wash hands. With a clean hand, scoop fries
completely away from the Low Product Sensor. [You
may have to remove some fries to get below the sensor.]
2)
Roll the unit out to allow access to rear service panel.
3)
Leave unit connected to power source. Adjustments will
be made to the 24-Volt control system only.
4)
Remove the screws that secure the rear service panel.
Lift panel up and out.
5)
Locate the Low Product Sensor mounted through the
refrigeration compartment, just left-of-center above Rotor
Motor.
6)
Locate the small rubber tethered plug on that sensor.
You should be able to remove it by hand.
7)
Using a small 2 mm [1/16”] flat bladed screwdriver to
slowly turn the adjustment screw clockwise until the low
product LED light on back of sensor comes
ON
, then
back that screw counterclockwise until the LED light
goes
OFF
.
8)
Test
Low Product Sensor Sensitivity as follows:
9)
Check Front Panel, the [
!
] warning lights will be on and
words:
Low Product Warning
should be in display.
10) With a clean hand, scoop fries so that they surround the
sensor (or add fries to hopper if necessary). The [
!
] lights
and warning text should turn off. Scoop the fries away,
and the lights and warning should come back ON. If the
lights and warning stays on, turn the sensor adjustment
screw slightly counterclockwise and test again. Repeat
until the light and text warning turns on and off correctly.
11) If repeated attempts to adjust Low Product Sensor fail to
correct problem, see Part Replacement Section 2.12 and
replace faulty or suspect sensor.
12) If sensor adjustment corrects problem, replace small
plastic plug in back of Low Product Sensor.
IMPORTANT:
That plug seals out moisture.
13) Position and secure rear service access panel and return
Dispenser to normal operating position.
[Photo 1] – Rear of F3D3S
A low product sensor is just left-
of-center above rotor motor.
[Photo 2] – From rear of unit
After removing the small plastic
plug, use a 2 mm [1/16”]
screwdriver to adjust sensitivity.
[Photo 3]
Three LCDs at corners of
warning triangle come on and
text warning appears in display,
when fries [or test object] are
below sensor level in Hopper
.
Rev. 1 6/2012
Tools Required:
Medium Phillips screwdriver
2 mm [1/16”] flat blade
screwdriver
