Bunn VP17-3 Manuel de service

VP17

Series

SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: [phone] FAX: [phone]

To ensure you have the latest revision of the Operating Manual, Illustrated Parts Catalog, Pro­gramming Manual, or Service Manual, please visit the Bunn-O-Matic website, at www.bunn.com.
This is absolutely FREE, and the quickest way to obtain the latest catalog and manual updates.
For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.

46721.0000B 09/17 ©2012 Bunn-O-Matic Corporation

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY

Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:

1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCR/MCP/MCA single cup brewers, ther­mal servers and ThermoFresh® servers (mechanical and digital) 1 year parts and 1 year labor.

2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below:
a) Electronic circuit and/or control boards - parts and labor for 3 years.
b) Compressors on refrigeration equipment - 5 years parts and 1 year labor.
c) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts and
labor for 4 years or 40,000 pounds of coffee, whichever comes first.

These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by it will be
commercially free of defects in material and workmanship existing at the time of manufacture and appearing within the
applicable warranty period. This warranty does not apply to any equipment, component or part that was not manufactured
by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect, alteration, improper installation or operation,
improper maintenance or repair, non periodic cleaning and descaling, equipment failures related to poor water quality,
damage or casualty. In addition, the warranty does not apply to replacement of items subject to normal use including but
not limited to user replaceable parts such as seals and gaskets. This warranty is conditioned on the Buyer 1) giving BUNN
prompt notice of any claim to be made under this warranty by telephone at [phone] or by writing to Post Office Box
3227, Springfield, Illinois 62708-3227; 2) if requested by BUNN, shipping the defective equipment prepaid to an authorized
BUNN service location; and 3) receiving prior authorization from BUNN that the defective equipment is under warranty.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EX­PRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN are not authorized to make

modifications to this warranty or to make additional warranties that are binding on BUNN. Accordingly, statements by such
individuals, whether oral or written, do not constitute warranties and should not be relied upon.
If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its exclusive op­tion while the equipment is under warranty, shall either 1) provide at no charge replacement parts and/or labor (during the
applicable parts and labor warranty periods specified above) to repair the defective components, provided that this repair
is done by a BUNN Authorized Service Representative; or 2) shall replace the equipment or refund the purchase price for
the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS
EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S SOLE OPTION
AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND.

In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of
use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities
or services, or any other special, incidental or consequential damages.

392, A Partner You Can Count On, Air Infusion, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not Bitter, Brew­WISE, BrewWIZARD, BUNN Espress, BUNN Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic, BUNN, BUNN with
the stylized red line, BUNNlink, Bunn-OMatic, Bunn-O-Matic, BUNNserve, BUNNSERVE with the stylized wrench design,
Cool Froth, DBC, Dr. Brew stylized Dr. design, Dual, Easy Pour, EasyClear, EasyGard, FlavorGard, Gourmet Ice, Gourmet
Juice, High Intensity, iMIX, Infusion Series, Intellisteam, My Café, Phase Brew, PowerLogic, Quality Beverage Equipment
Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.com,
Scale-Pro, Silver Series, Single, Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in
Beverage Equipment Worldwide, ThermoFresh, Titan, trifecta, TRIFECTA (sylized logo), Velocity Brew, Air Brew, Beverage
Bar Creator, Beverage Profit Calculator, Brew better, not bitter., Build-A-Drink, BUNNSource, Coffee At Its Best, Cyclonic
Heating System, Daypart, Digital Brewer Control, Element, Milk Texturing Fusion, Nothing Brews Like a BUNN, Picture
Prompted Cleaning, Pouring Profits, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal Red Line, Ultra are either
trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial trifecta® brewer housing configura­tion is a trademark of Bunn-O-Matic Corporation.

Page 2

46721 031314

SERVICE

This manual provides procedures for testing and
replacing various major components used in this
brewer should service become necessary. Refer to
Troubleshooting for assistance in determining the
cause of any problem.

WARNING - Inspection, testing, and repair of electri­cal equipment should be performed only by qualified
service personnel. The brewer should be unplugged
when servicing, except when electrical tests are re­quired and the test procedure specifically states to
plug in the brewer.

COMPONENT ACCESS

WARNING - Disconnect the brewer from the power

source before the removal of any panel or the replace­ment of any component.

All components are accessible by the removal of
the top cover and front inspection panel and warmer
assemblies.

Contents

Control Thermostat .............................................. 4

Limit Thermostat .................................................. 5

ON/OFF Switch ..................................................... 6

Tank Heater .......................................................... 7

Tank Heater Switch .............................................. 8

Warmer Elements...............................................10

Wiring Diagrams ................................................ 11

The top cover is attached with one #4-40 screw.

The front inspection panel is attached with four #6-32
screws.

The warmer assembly is attached with three #4-40
screws.

FIG. 1 COMPONENT ACCESS

P1160.40

Page 3

46721 052512

SERVICE (cont.)

CONTROL THERMOSTAT

P1161.40

FIG. 2 CONTROL THERMOSTAT

Location:
The control thermostat is located inside the trunk
on the left side of the component bracket.

Test Procedures:

1. Disconnect the brewer from the power source.

2. With a voltmeter, check the voltage across the
blue wire on the control thermostat and the white
wire on the tank heater. Connect the brewer to the
power source. The indication must be:

a) 100 volts ac for two wire 100 volt models.
b) 120 volts ac for two wire 120 volt models.

3. Disconnect the brewer from the power source.

If voltage is present as described, proceed to #4.
If voltage is not present as described, refer to the Wiring
Diagrams and check the brewer wiring harness.

7. Disconnect the brewer from the power source.

If voltage is present as described, reinstall the capillary
tube into the tank to the line 4.5" above the bulb, the
control thermostat is operating properly.
If voltage is not present as described, replace the
thermostat.

Removal and Replacement:

1. Remove wires from control thermostat leads.

2. Remove the thermostat capillary bulb by firmly
pulling up on the capillary at the tank lid. This will
disengage the grommet from the tank lid.

3. Remove the one #8-32 screw securing the con­trol thermostat to the component bracket in the
trunk.

4. Slide the grommet to the line 4.5" above the bulb
on the new capillary tube.

5. Insert the capillary bulb through the hole in the
tank lid and press the grommet firmly and evenly
so that the groove in the grommet fits into the tank
lid.

6. Carefully bend the capillary tube so that the tube
and bulb inside the tank are in the vertical posi­tion.

NOTE - The capillary tube must be clear of any electri-

cal termination and not kinked.

7. Using one #8-32 screw secure the control thermo­stat to the component bracket inside the trunk.

8. Refer to Fig. 3 when reconnecting the wires.

9. Adjust the control thermostat as required.

4. Gently remove the capillary bulb and grommet
from the tank.

5. With a voltmeter, check the voltage across the black
wire of the control thermostat and the white wire
on the tank heater when the control thermostat is
turned "ON" (Fully clockwise). Connect the brewer
to the power source. The indication must be:

a) 100 volts ac for two wire 100 volt models.
b) 120 volts ac for two wire 120 volt models.

6. Voltage must not be present when the thermostat
is turned to the "OFF" position.

Page 4

BLU to BLU Lead from
Limit Thermostat

BLK to BLK Lead from
Tank Heater

P1263

FIG. 3 CONTROL THERMOSTAT TERMINALS

46721 052512

SERVICE (cont.)

LIMIT THERMOSTAT

P1161.40

FIG. 4 LIMIT THERMOSTAT

Location:
The limit thermostat is located inside the rear of
the hood on the tank lid.

Test Procedures:

1. Disconnect the brewer from the power source.

2. Disconnect the blue and black wires from the limit

thermostat.

3. With an ohmmeter, check for continuity across

the limit thermostat terminals.

Removal and Replacement:

1. Remove all wires from limit thermostat termi­nals.

2. Carefully slide the limit thermostat out from under
the retaining clip and remove limit thermostat.

3. Carefully slide the new limit thermostat into the
retaining clip.

4. Refer to Fig. 5 when reconnecting the wires.

BLU to BLU Lead from
Control Thermostat

BLK to Terminal Block or Tank Heater Switch

P1800

FIG. 5 LIMIT THERMOSTAT TERMINALS

If continuity is present as described, the limit thermostat
is operating properly.
If continuity is not present as described, replace the
limit thermostat.

Page 5

46721 052512