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To ensure you have the latest revision of the manual or to obtain the illustrated parts catalog, 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. Contact Bunn-O-Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S.
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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.
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ELECTRICAL REQUIREMENTS WARNING - The brewer must be disconnected from the power source until specified in Initial Set-Up. Refer to Data Plate on the Brewer, and local/national electrical codes to determine circuit requirements. L2 RED L2 RED L2 RED L2 RED WHITE WHITE WHITE...
" water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer to clean the counter top. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow.
This is used to "receive" information from the Smart Funnel handle (coffee name and batch size), and also from RECIPE CARDS. (j) SCROLL BACKWARDS (Upper Left Hidden Switch) The upper left corner of the B in BUNN can be used to scroll backwards through the function list. 34025 022509 Page 7...
7. The brewer is now ready for use in accordance with the coffee brewing instructions. COFFEE BREWING 1. Insert a BUNN filter into the Smart Funnel. 2. If a grinder is not used to obtain the coffee grounds, pour the proper amount of fresh coffee grounds into the funnel and level by gently shaking.
GLOSSARY AD CARD: An assembly consisting of a computer chip and an instruction label. Used for loading advertising messages into the brewer. BREW LOCKOUT: The inability to initiate a brew if the water temperature is less than the ready temperature programmed into the brewer.
This is used to access the programming mode and is also used to scroll forward through the function list. 2. Upper left corner of the "B" in the BUNN logo This is used to scroll backwards through the function list.
PROGRAMMING THE BREWER The programming of the brewer is divided into two levels. There is one function in Level 1. All other functions are accessed in Level 2. The following function screens are in order of appearance. Each screen will have instructions on how to access, and the procedures to program the various functions of the brewer.
THE NO NAME INSTRUCTIONS BREW SETTINGS REFER TO NAME LIST GO TO REVIEW RECIPES IN GRINDER MANUAL AND FOLLOW INSTRUCTIONS CONTACT BUNN-O-MATIC TO VIEW A LIST OF EXISTING RECIPES, FOR ASSISTANCE GO TO REVIEW RECIPES AND FOLLOW THE INSTRUCTIONS P2438 34025 012004...
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET NEW RECIPE Procedure for Setting the Recipe: Using a Smart Funnel and a G92T DBC Grinder: NOTE: Before beginning setup, place a server beneath This function allows the operator to set BREW VOL- the sprayhead.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET NEW RECIPES (cont.) 17. If setting pulse brew by ENTER TIMES (entering 8. Using (-) and (+), set the amount of brew water, known times) press NO. The display should read in ounces, to be dispensed over the grounds for ENTER TIMES.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET NEW RECIPES (cont.) 27. The display should now read DRIP TIME, along with either the word OFF, or a time will be showing. 22. Using (-) and (+), set the amount of time the brew A batch light should also be blinking.
PLETE. All brew settings for that name are now Using a RECIPE CARD to load coffee names and stored in the brewer's memory. brew settings into the SINGLE SH DBC with Smart 6. If the brewing information is not correct, or it is Funnel ®...
BREW OZ. XX.X BYPASS PERCENTAGES, PULSE BREW TIMES, PRE- MODIFYSHOWNEXT DONE INFUSION TIMES and DRIP-OUT TIMES. The brewer will perform in the same capacity as a standard BUNN Single Brewer. The instructions for programming the NO NAME BREW OZ. XX.X settings are on the following pages.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) REVIEW RECIPES/MODIFY RECIPES/SET UP NO until the display reads REVIEW RECIPES. NAME COFFEE FLAVORS: 2. Press YES to proceed. The display should now This function has three parts. It allows the operator read NO NAME, along with MODIFY, SHOW and to view the brew settings for the various coffee names NEXT.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW OZ (SETTING OR ADJUSTING BREW VOL- Press and release the batch size to be modified. 5. Using (-) and (+), set the amount of brew water, UMES) This function allows adjustment of the brew vol- in ounces, to be dispensed over the grounds for umes for each batch.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 4. Press and release MODIFY. The display should % BYPASS read BREW OZ. This function allows adjustment of the amount of 5. Press and release DONE. The display should read water that bypasses the grounds. The number signi- 3 BATCHES DONE?.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET PULSE BREW: Modifying pulse brew: This function allows the operator to program Range: 1st on time - off to 4 minutes the brewer to "pulse” the sprayhead flow on and off Off time - off to 4 minutes during a brew cycle (start and stop the flow of water Last on time - off to 4 minutes out of the sprayhead).
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew - BY EXAMPLE: 1. This display should read CONTAINER READY? Place a container under the sprayhead. Place a brew funnel containing a filter and grounds on top of the container so that the spray and coffee bed can be viewed.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew - ENTER TIMES: 6. If other batch sizes need to be modified, press NO. NOTE: No water should flow from the brewer during The display will then read SET BY EXAMPLE. this set-up process.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 16. When finished, press DONE. The display will show SET PREINFUSION the ON and OFF TIMES that were entered for a This function allows the operator to set an initial soaking of the grounds and a delay time, before the particular batch size.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) DRIP TIME (now displayed on "non" funnel lock 12. When finished, press another batch size and repeat units as well) step 11 until all three batches are set. This function allows the setting or modification 13.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 2. To adjust the brew temperature, press (-) to de- ENABLE ADS? crease or (+) to increase the brew temperature. This function allows the operator to choose whether 3. When finished, press and release DONE to save or not to display the advertising message that was en- the new setting, exit the SET TEMP function and tered into the brewer with an AD CARD.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET NEW RECIPES. Release the ®. Press and REFILL - Range: 20 to 230 release the ® pad until the display reads SPRAY This function allows the operator to adjust the OZ/M. The number represents what the brewer sensitivity of the refill circuit.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRATE FLOW This function allows the operator to enter the actual flow rate of the sprayhead and the bypass by dispens- ing both separately for one minute. The volumes are then entered in ounces per minute. (Oz/M) CALIBRATE FLOW? Procedures to calibrate the sprayhead flow rate: 1.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRATE FLOW (cont.) Procedures to calibrate the bypass flow rate: CALIBRATE FLOW? 1. Place a container, accurately graduated in ounces, and with a minimum capacity of 60 ounces, below the funnel on the brewer. EXIT TO THE 2.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW COUNTERS FUNNEL DETECT (optional) This function allows the operator to track the num- This function allows the operator to prevent the ber of brew cycles completed. There is one resettable start of a brew cycle if a Smart Funnel is not positioned counter, and one life counter that is not resettable.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SERVICE TOOLS SERVER DETECT This function allows the testing of individual com- This function allows the operator to prevent the start ponents and the ability to check switches for proper of a brew cycle if a Soft Heat server is not positioned function.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) funnel in place. SERVICE TOOLS (cont.) 14. Press OFF to retract the funnel lock. Testing individual components (outputs): 15. Press NEXT to advance to the next component to This will allow the operator to test the operation be tested.
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SERVICE TOOLS (cont.) 8. Lift and pull the Soft Heat server forward about 2 inches so that the two contacts on the server do 5. The display should read TEST OUTPUTS. not touch the two contacts on the brewer. 6.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) FACTORY DEFAULTS FACTORY DEFAULT VALUES This function allows the operator to erase all of the previously entered recipes and ad messages. Factory- Brew Lockout set default values will replace all previous settings. BREW VOLUMES: Small Batch 64 oz.
TROUBLESHOOTING A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
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TROUBLESHOOTING (cont.) Screen Displayed Possible Cause Troubleshooting Procedure 1. SMART FUNNEL not fully inserted Position the funnel so that the sensor NO FUNNEL into the funnel rails. is directly beneath the sensor coil on PRESENT the brewer. 2. Not using a SMART FUNNEL, Disable the FUNNEL DETECT func- and the FUNNEL DETECT function tion.
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TROUBLESHOOTING (cont.) Screen Displayed Possible Cause Troubleshooting Procedure 1. Soft Heat Server was moved out To resume brewing, correctly of position after the brew cycle was position the Soft Heat Server and BREW STOPPED! started. press BREW again. The brew cycle SERVER REMOVED? resumes from the point it was inter- rupted.
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TROUBLESHOOTING (cont.) Screen Displayed Possible Cause Troubleshooting Procedure Check water supply shut-off 1. Water shut off to brewer FILL TIME TOO Service required LONG 2. Inlet Solenoid Valve failure Service required 3. Control Board Failure CHECK WATER SUPPLY Check wire and connection of both 1.
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TROUBLESHOOTING (cont.) Problem Troubleshooting Procedure Possible Cause Measure the voltage at the terminal Equipment will not operate. 1. No power or incorrect voltage. block and confirm that it matches the voltage specified on the brewer data plate within +/- 10%. Check plumbing and shut-off valves Brew cycle will not start.
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TROUBLESHOOTING (cont.) Problem Possible Cause Troubleshooting Procedure Automatic refill will not operate or 3. Refill Probe or Sensitivity Set- Check the sensitivity setting. Refer display shows FILL TIME TOO LONG ting to the Refill function on page 28. (cont.) If the left three digit number is less than the right number, the machine “thinks”...
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TROUBLESHOOTING (cont.) Problem Possible Cause Troubleshooting Procedures 1. Refill Probe or Sensitivity Set- Water flows into tank continuously Check the sensitivity setting. Refer ting to the Refill function on page 28. If with power applied to brewer. the left three digit number is less than the right number, the machine “thinks”...
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TROUBLESHOOTING (cont.) Troubleshooting Procedures Problem Possible Cause Water will not heat or display shows Remove power from the brewer. 3. Triac HEATING TIME TOO LONG (cont.) Connect a voltmeter across one of the tank heaters. Reapply power to the brewer and refer to Testing Individual Components on page 33.
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TROUBLESHOOTING (cont.) Troubleshooting Procedures Problem Possible Cause Spitting or unusual steaming from 3. Electronic control board Perform the above procedure for sprayhead or air vents. (Water too testing triacs. If the voltage mea- hot) (cont.) sured is very low or zero, then substitute a control board known to be in good working order.
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Dripping from sprayhead. 1. Brew Valve Repair or replace leaky valve. Water overflows filter. BUNN paper filters should be used 1. Type of paper filters for proper extraction. 2. No sprayhead Check sprayhead Beverage overflows server.
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Troubleshooting Procedures 6. Incorrect Recipe Weak beverage (cont.) Consider adjusting bypass percent- age, preinfusion, or pulse brew. Contact Bunn-O-Matic for sugges- tions. Brewer is making unusual noises. 1. Solenoid (Inlet) The nut on back of the solenoid must be tight or it will vibrate during operation 2.
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