F3Dn Service Manual Component Adjustments / Section 3.1
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Copyright
2006 Franke, Inc. All rights reserved
3.1 Low Product Sensor Adjustment
[Part No. 19000384]
Problem
: False LOW PRODUCT Light indication on
Lane Control Panel, 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 the bin level close
to or 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 screw that secures the rear service panel.
5)
Locate the Low Product Sensor mounted through the
refrigeration compartment wall just below each Main
Control Board.
6)
Locate the small rubber tethered plug on that sensor.
You should be able to remove it by hand.
7)
Using the plastic 1/16” [2 mm] flat bladed screwdriver
provided, slowly turn the adjustment screw clockwise
until the LOW PRODUCT LED light on Main Control
Board 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 LOW PRODUCT warning light. Lights
should still be ON.
10) With a clean hand, scoop fries so that they surround the
sensor (adding fries to hopper if necessary). As you do
so, the LOW PRODUCT light should turn off. Scoop the
fries away, and the light should come back ON. If the
LOW PRODUCT light stays on, turn the sensor
adjustment screw slightly counterclockwise, and test
again. Repeat adjustment until the LOW PRODUCT light
turns on and off correctly.
11) If repeated attempts to adjust Low Product Sensor fail to
correct problem, see Part Replacement Section 2.11 and
replace faulty or suspect sensor.
12) If sensor adjustment corrects problem, replace small
plastic plug in back of Low Product Sensor. It seals out
moisture.
13) Replace rear service access panel and return F3Dn
Dispenser to normal operating location.
[Photo 1]
Low product sensor is mounted
below the Main Control Board.
[Photo 2]
After removing the small plastic
plug, use the plastic 1/16” [2
mm] screwdriver provided to
adjust sensitivity.
[Photo3]
LOW PRODUCT LED comes on
when fries or other solid [test]
object is present in Hopper
.
Rev. 3 11/06
@
Tools Required:
Ø
3/8” [10 mm] flat blade
screw driver
Ø
1/16” [2 mm] flat blade
screw driver [Provided]
