Bunn Coffee Maker Troubleshooting: Solve Your Coffee Brewing Problems
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TROUBLESHOOTING (cont.)

Screen Displayed

NO FUNNEL PRESENT

TEMPERATURE

TOO LOW

CHECK FUNNEL FOR FRESH COFFEE

PRESS BREW

TO BREW ANYWAY

BREW STOPPED!

FUNNEL REMOVED?

TO FINISH:

PRESS BREW

TO CANCEL

PRESS ON/OFF

Possible Cause

1.SMART FUNNEL not fully inserted into the funnel rails.

2.Not using a SMART FUNNEL, and the FUNNEL DETECT function is activated (on).

1.Water temperature in the tank does not meet the SET READY

TEMPERATURE.

1.Brew funnel was not removed after the previous brew cycle was finished.

1.Brew funnel was moved out of position after the brew cycle was started.

Troubleshooting Procedures

Position the funnel so that the sensor is directly beneath the sensor coil on the brewer.

Disable the FUNNEL DETECT func- tion.

(a)Wait for the brewer to heat to the proper temperature.

(b)Disable the BREW LOCKOUT function.

Remove funnel, check contents, and insert back into the funnel rails.

OR

Press BREW to start a brew cycle without removing the funnel.

To resume brewing, correctly posi- tion the funnel and press BREW again. The brew cycle will resume from the point it was interrupted.

OR

Press ON/OFF to terminate the cycle.

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Contents Dual SH DBC Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty IntroductionTable of Contents 00831.0000 User Notices00658.0000 00656.0000 37881.0000 03408.0004Electrical Requirements 230 volt ac modelsCE Requirements Plumbing RequirementsPlumbing HOOK-UP Operating Controls Initial Setup CleaningCoffee Brewing Glossary Programming Switches ProgrammingProgramming the Brewer Important Programming Notes Read CarefullyProgram Functions Level Recipe Programing Methods Using a Smart Funnel and a G9-2T DBC or MHG GrinderNot using a Smart Funnel and/or a G9-2T DBC or MHG Grinder RecipesReturns LevelContinue To E To D To aProgram Flow Diagram Continue to B Return to aContinue to F Left Brew Valve Byps OZ/M Units Setting Units of Measure Procedure for modifying units of measureProcedure for Setting the Recipe SET NEW RecipeThis function allows the operator to set Brew SET NEW Recipe Sizes DONE?Procedure to program the coffee name SET NEW RecipesOtherwise, press Next to display no Name RightTimes Review RECIPES/MODIFY RECIPES/SET UP no Name CoffeeProcedure for reviewing recipes Review RecipesBrew OZ Setting or Adjusting Brew VOL- Umes Done Coffee Name Modifyshownext Batches DONE? YESBypass Batches DONE?SET Pulse Brew Modifying pulse brewNO-NAME Left Modifyshownext SET Pulse BrewSET Pulse Brew Easy Pulse Setup SET Pulse Brew Enter Times TIMES?DONE? SET Preinfusion Drip Time now displayed on non funnel lock units as well Procedure to modify drip timesSetup Complete Read % BypassAssign Recipes Procedure to copy settingsReads Copy Settings OnlyAre YOU SURE? Enable ADS?YOU SURE? SET TempRefill Range 20 to Procedure to set ready temperatureSET Temp SET ReadyBypass OZ/M Spray OZ/M Procedure to adjust the flow rate settingProcedures to calibrate the sprayhead flow rate Calibrate FlowRepeat steps 1 9 when calibrating the other side Repeat steps 1 8 when calibrating the other sideProcedures to calibrate the bypass flow rate Calibrate FlowBrew Counters Not resettableProcedures to view/reset the brew counters This function allows the operator to trackFunnel Detect Server DetectServer not in Place Service Tools Testing individual components outputsLeft Brew Valve Service Tools Procedure to test components outputsProcedure to test switches Nothing PressedProcedures to test coil frequency Service ToolsProcedures to test servers ERS?Factory Defaults Procedure to set factory defaultsTroubleshooting Disable the Server Detect func- tionScreen Displayed Possible Cause Screen Displayed TemperatureTroubleshooting Procedures Smart Funnel not fully inserted into the funnel railsTank Heater failure Triac FailureControl Board/Thermistor failure Troubleshooting Data plate within +/- 10% Problem Possible Cause Troubleshooting ProcedureEquipment will not operate No power or incorrect voltage Brew cycle will not start No waterProblem Possible Cause Power Possible Cause Limit ThermostatTank Heaters Problem TriacProblem Possible Cause Troubleshooting Procedures Level in server Consistently high or low beverage Brew Volume adjustmentWater temperature For each brew cycleAge, preinfusion, or pulse brew Tank Heaters Remove and clean lime off tankWeak beverage Incorrect Recipe TionsSchematic Wiring Diagram Dual SH with Smart Funnel DBCSchematic Wiring Diagram Dual SH DBC W/SMART Funnel Limit Thermostat MT1

S/N DUAL068000 specifications

The Bunn S/N DUAL068000 is a versatile and high-performance commercial coffee brewer designed for those who demand quality and efficiency in their coffee-making operations. This brewer is part of Bunn’s DUAL series, known for its innovative technology and robust construction, making it a favored choice among coffee shops, restaurants, and offices.

One of the standout features of the DUAL068000 is its dual brewing capability. This allows users to brew two different types of coffee simultaneously, ensuring a wide range of flavors and options for customers. The unit is equipped with two independent brewing chambers, each capable of producing a batch of coffee in a matter of minutes, which is ideal for high-volume settings.

The DUAL068000 utilizes Bunn’s state-of-the-art brewing technology, including its patented "Duo-Temp" brewing system. This technology ensures that water is heated to the optimal temperature, generally between 195°F and 205°F, for extracting the best flavors from coffee grounds. Furthermore, the unit features a precision digital control system with programmable settings, allowing users to fine-tune brew times and temperatures for consistent quality.

An innovative characteristic of the DUAL068000 is its energy efficiency. The brewer incorporates an energy-saving mode, reducing power consumption during off-peak hours without sacrificing performance when needed. This makes the brewer not only cost-effective but also environmentally friendly, aligning with the growing trend towards sustainability in the food and beverage industry.

In terms of construction, the Bunn S/N DUAL068000 boasts a durable stainless steel design, ensuring longevity and resistance to wear and tear. It is also designed with easy access to components for maintenance, making it convenient for operators to clean and service the machine as necessary.

Other notable features include an integrated hot water faucet for tea and instant beverages, the capability to brew into various container sizes, and a large reservoir that minimizes refill frequency.

In conclusion, the Bunn S/N DUAL068000 is an exemplary commercial coffee brewer that combines advanced technology, durable construction, and user-friendly features. Its dual brewing capability and energy-saving design make it a top choice for establishments looking to enhance their coffee offerings while maintaining efficiency and quality. With this brewer, businesses can cater to a diverse array of customer preferences, making it an invaluable asset in any beverage service environment.
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