AC2-GP
Service Manual
Multi-Sweetener Dispenser
D-19-123 RevA
AC2-GP
Multi-Sweetener Dispenser
FEATURES:
Easy to install – plug in, load, dispense
Easy refill and service
Accurate, preprogrammed, consistent
portions
Drink Count Data available
Clean dispense – quick cutoff avoids messy
spills
Dispenses two products
Feet are moveable to slide under
neighboring appliances
SureShot Technical Assistance Center
1-888-777-9990 or 902-865-9602
service@sureshotdispensing.com
parts@sureshotdispensing.com
www.sureshotdispensing.com
A.C. Dispensing Equipment Inc.
100 Dispensing Way
Lower Sackville, Nova Scotia
Canada B4C 4H2
TABLE OF CONTENTS
The Dispenser .................................................... 1
Main Components .............................................. 1
Specifications ..................................................... 1
Safety Precautions ............................................. 2
Operating Instructions ........................................ 2
Service and Warranty ......................................... 2
Reshipment ........................................................ 2
Troubleshooting ................................................. 3
Replacement Parts ......................................... 3
Remove and Install Components ....................... 8
Tools Required ............................................... 8
Auger Motor .................................................... 8
Power Supply ............................................... 11
Transition Pieces .......................................... 12
Repositioning or Replacing the Door ............ 13
Door Cable Assembly ................................... 14
External Power Supply Connector PCB ....... 15
Power Entry Module and Harnesses ............ 16
Replace Motor Cable Assemblies ................ 17
Reprogramming Using a FOB ...................... 18
Accessing the Program .................................... 19
Appendix 1 ....................................................... 21
Assembly Diagram and Service Parts Lists . 21
Appendix 2 ....................................................... 26
Wiring Diagram ............................................. 26
AC2-GP
Dispenser may not be exactly as shown
Program Mode Buttons
Program Mode
Adjustment Up
Adjustment Down
Panel Disable
LCD Display
Window
Button Panel
Infrared
Programming
Window
Program /
Maintenance
Mode Buttons
Catch Tray and
Screen
Cup Guide
(optional)
Dispenser Top
Transition Piece
(under top)
SPECIFICATIONS
Weight: 29.0 lbs/13.2 kg
(empty dispenser)
Dimensions (DxWxH): 17.75" x 4.0" x 24"
(without feet)
Dispenser height
varies with feet
selection
Hopper Capacity: Top Hopper
6.0 lbs/2.7 kg
(granular sugar)
Bottom Hopper
2.5 lbs/1.1 kg
(granular sugar)
Electrical Requirement: 100-240 VAC,
0.5 amps Max.
50-60Hz, 1 ph
Positionable
Feet
Important: Read this Manual now and retain it for future reference
THE DISPENSER
The SureShot Dispensing Systems® AC2-GP Multi-Sweetener Dispenser automatically
dispenses controlled portions of two dry products such as sugar and other alternative
products for use in coffee, milkshakes, hot chocolate, health drinks and other beverages.
The product is dispensed by touching selection buttons on the front of the dispenser.
The dispenser has been preconfigured to industry-standard defaults. Each button press
is preset independently to accurately dispense a specified amount of product using our
unique, state-of-the-art microprocessor technology. The products to dispense are
contained in product hoppers inside the dispenser. The auger style dispense system is
designed to work with dry products with similar consistency to sugar granules.
MAIN COMPONENTS
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
MULTI-SWEETENER DISPENSER
SERVICE MANUAL
1
SAFETY PRECAUTIONS
Always plug the dispenser into an approved electrical outlet.
The dispenser includes a microcontroller and must be operated on grounded
electrical wiring at all times.
Unless otherwise specified in the procedure, the dispenser should be unplugged from
its electrical source before servicing.
Do not immerse the dispenser in water.
Observe all safety precautions with this dispenser that you would with any electrical
appliance.
The dispense auger is powered by a motor with a turning shaft. To avoid possible
injury or equipment damage, keep hands and objects clear of the auger and shaft
when equipment is plugged in.
OPERATING INSTRUCTIONS
For all operating procedures and instructions refer to the operations manual specific to
the dispenser being serviced. For general operating instructions refer to manual D-19-
090.
SERVICE AND WARRANTY
Standard warranty is one year, on-site parts and labour (unless otherwise negotiated).
Access to USA and Canada-wide Technical Service Network.
The Warranty will be null and void if the dispenser is serviced by unqualified personnel.
Under warranty, service technicians must be approved and dispatched by the SureShot
Technical Assistance Center.
During the warrantee period, the SureShot Technical Assistance Center must be
contacted at 1-888-777-9990 or 902-865-9602 for approval of any proposed service
before commencing.
The customer is responsible for all costs not approved by SureShot Dispensing
Systems®.
Note: the Serial Number and Option Code of your dispenser are located on the Product
Identification Label on the back of the unit. Please refer to these numbers when
contacting the SureShot Technical Assistance Center. These numbers are crucial in
helping us provide prompt and effective service. This will save you time.
RESHIPMENT
No returns will be accepted without prior approval. Obtain a Return Materials
Authorization (RMA) number by contacting the SureShot Technical Assistance Center at
1-888-777-9990 or 902-865-9602.
Ensure pieces which may shift in transit are secured using masking tape.
If packaging is not available, it may be purchased from the SureShot Parts Department
by calling 1-888-777-9990 or 902-865-9602.
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
2
TROUBLESHOOTING
Problem
Action
Dispenser does not
turn on (LCD remains
blank after plugging in
the unit and none of
the buttons function).
The inability to turn on is an indication that either power is not reaching
the control circuit board in the door or the door itself is defective. Follow
through the steps described below to isolate the issue. Check unit
functionality after each step and repair defect or replace parts as
required.
1. Check to ensure that the wall outlet is functioning.
2. Check that all external power cord(s) are completely and securely
connected at all points.
3. On Units with an external power supply1:
a. Verify that the retaining nut on the power feed-through on the
back of the unit is fully installed. (If the nut has backed-off it may
prevent full connector engagement.)
b. Verify that the connection from the power cord to the jack on the
back of the unit is secure by trying to move the connector. If the
power comes on for any length of time then the connection is
poor. If the connector cannot be tightened further then the power
entry PCB may have to be replaced (see page 15).
c. Verify supply functionality – remove the power cord jack from the
back of the unit and using a volt-meter verify that there is 12 VDC
at the power supply by probing the connector jack. If 12 VDC is
present, re-connect to machine.
4. Check that the door cable is completely and securely connected to
the circuit board in the door. To do this:
a. Open the front door and remove door wire grommet
b. Gently tug on door cable to ensure secure connection.
5. With the unit powered on, verify power at door connector – open
door, remove door connector and confirm that voltage across pins 1
(or 2) and 4 (or 5) is 12 VDC. If there is power on the cable
connector but the door does not function when properly connected,
then the door may require replacement.
1
The following trouble-shooting guide is intended to assist in tracking down some of the simpler
and/or more commonly occurring issues. Any actions or suggested replacement parts represent
possible causes and solutions only and are not guaranteed to correct the observed issue. If there
are any questions regarding either the procedures or the replacement parts required, please
contact the SureShot Technical Assistance Center at 1-888-777-9990 or 902-865-9602.
Replacement Parts
To determine replacement parts, refer to Appendix 1 on page 21.
Note: The Serial Number and Option Code of the unit must be included with the order
information for many of the replacement parts. Both are located on the Product
Identification Label on the back of the unit.
On units with Serial Number XXXX-003874 and lower the power supply is an external type as
shown on page 11. After that serial number the power supplies were installed inside the unit.
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
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Note: attachments to multi-meter probes may be required to access
connector contacts.
6. If there is no power at the door connector then trace back to where
the power is lost. To do this remove the right side panel (preferred) or
left side panel as viewed from the front of the unit.
7. On Units with an internal power supply:
Caution: the power supply and input connections are 110 VAC.
a. Ensure that all connections to the power supply and power entry
module are in place and secure.
b. Remove the input connector (with black and white wires) and
verify the voltage at the output of the wiring harness is 110 VAC.
If there is no voltage then either the power cord, the power entry
module or the power wire harness is defective and may need to
be replaced. Examine each further as required to find the
defective part.
c. Replace the power supply input connector and remove the output
connector on the top of the power supply. Check that the voltage
on the power supply output pins is 12 VDC. If the power is
present at the input but not at the output then the power supply
may need to be replaced.
- +
8. On Units with an external power supply:
a. Check the integrity of each connector and examine the wires for
breaks or other damage. If the integrity is unclear, replace with
new wire to see if problem is corrected. Replace as required.
b. Check the power availability of each connector in turn using the
diagram shown in step 5 as a guide. As can be seen with the
side panel removed, the wiring is a sequential series of wires
with RJ45 connectors at each end. A break in connection at any
point eliminates power (or communication) from propagating to
any points “downstream” of the break. Replace any damaged
wires or components as required.
Dispenser resets
intermittently (goes
through power-up
sequence)
The intermittent resetting of a unit is usually an indication of a faulty
connection somewhere between the power supply and the control PCB in
the door. To find the fault:
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
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1. Check all connections in line with door power (see “Dispenser does
not turn on” troubleshooting section above) and verify that they are
completely and securely connected. Repair or replace any defective
parts as required.
2. If all connections are secure and symptoms recur without any
connections being compromised then the issue is likely to be either a
faulty power supply or an intermittent connection on the PCB in the
door.
3. If possible, replace the power supply with one that is known to
function properly and verify that intermittency disappears. If it is still
present then the intermittency is likely in the door and the door may
need replacement (see Page 13).
Button panel “locks-up”
or functions
unpredictably
As the unit is controlled by a micro-controller it is possible that under
some conditions (such as power surges or brown-outs) that a part of the
program becomes corrupted. To correct this condition:
1. Reset the unit by unplugging and re-connecting power. If problem
persists then continue to next step.
2. If this is not the issue and the problem persists the unit should be reprogrammed using a FOB (see page 18).
3. If the problem is still not corrected then the issue is a likely to be a
defective PCB and the door may have to be replaced (see page 13).
LCD display is blank
(or all black squares)
but unit continues to
function normally
otherwise.
An LCD that does not display properly may be caused by either a
defective LCD module or a faulty program. To determine the likely cause:
1. Reset the unit by unplugging and re-connecting power. If the LCD
continues to show a blank including during the power-up sequence
(during Reset) then the LCD is defective and the door may need to
be replaced. If the LCD does display characters during the power-up
sequence but not once the reset is complete then continue to next
step.
2. Re-program the unit using a FOB to over-write the corrupted program
with a new one.
Unit dispenses
incorrect amount of
product.
There can be several causes for the unit to dispense incorrect amounts
of product. The following steps should be followed to diagnose and
correct this issue:
1. Ensure that unit is set up and being operated correctly:
a. Ensure that hopper contains adequate amount of product - the
hopper should be filled at least to the low level mark.
b. Ensure that the hopper is securely positioned in the unit and
properly engaged with the motor coupler (See Loading Hoppers
in Operational Manual)
c. Ensure all required selections have been made: Beverage Type,
Product Selection, Size etc.
d. Ensure that the dispense Target is set correctly (refer to
Operations Manual if required).
e. Ensure that the correct Product type has been selected in the
program (refer to Operations Manual if required).
f. Ensure that the Volume Adjust is correct. (The factory default is
zero but it may be altered to compensate for local variations of
the product - refer to Operations Manual if required).
g. Ensure that the product delivery tubes are not twisted, kinked,
pinched-off or blocked.
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
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2. Reset the unit by unplugging and re-connecting power.
3. Verify that the auger is clean and is able to move freely by removing
the hopper and manually rotating the auger.
4. Ensure that the motor coupler is securely attached to the motor shaft
by removing the hopper and twisting it. If the coupler is firmly
attached, the motor/gearbox can be heard and felt to rotate. If it is
loose it may rotate freely or pull off easily and should be corrected by
tightening the coupler attachment screw.
Note:. When installing or tightening a coupler, make sure that the
coupler is pushed back to the plastic spacer but not tight enough to
restrict the coupler from rotating freely.
Note: In newer models the coupler can only be installed with the
clamping screw parallel to the flat side of the shaft.
5. If the coupler does not rotate smoothly and freely then it is possible
that the motor/gearbox assembly is damaged and may need to be
replaced. To verify this, re-position the coupler by loosening and retightening it as described in the note above. If the coupler is still
unable to turn then the motor assembly may have to be replaced.
6. Ensure that the motor is securely attached to the chassis by trying to
move the coupler side-to-side with the hopper removed. If it is loose,
tighten it and retest.
If the “Dispensing…” message persists for several seconds after the
dispense cycle has completed it is an indication that the rotary encoder
on the back of the motor assembly has become loose. To verify that this
is the problem:
7. Try dispensing several sizes of the same product. If the rotary
encoder is loose then all sizes will dispense approximately the same
amount of product. Also, the dispense cycle sounds different. Rather
then a sharp starting and stopping of the motor, the motor stops
slowly over a second or two at the end of dispense. In addition, in
units where the motors have a reverse rotation at the end of
dispense, the reverse portion of the dispense cycle is missing which
can be heard by the lack of the extra motor activation at the end of
each dispense.
8. Remove the left or right side cover and remove the hopper.
9. Holding the motor coupler with one hand, try moving the disk on the
rear of the motor shaft. It should only allow a small amount of rotation
before the coupler turns (the gearbox has a 10:1 ratio) and it should
not permit any axial movement on the shaft. See Figure 6 on page 9
for view of rotary encoder.
Note: Care should be taken not to disrupt the dipswitch on the motor
circuit card as any change in the dipswitch settings will cause the unit
to malfunction. The dipswitch is on the left hand side of the card (as
viewed from the front of the unit looking back) near the bottom of the
card. See page 9 for illustration of dipswitch.
If this examination is inconclusive the motor may need to be removed
for closer examination. If the rotary encoder is loose the motor
assembly will have to be replaced.
AC2-GP Multi-Sweetener • SureShot Technical Assistance Center: 1-888-777-9990 or 902-865-9602
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