Bunn S/N 0005473 & UP Troubleshooting, Problem, Cold Water Circulation, Probable Cause, Remedy

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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 person- nel.

•All electronic components have 120-240 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in board failure.

•Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp.

•Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for more than ten minutes without a supply of water.

•The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid twists and kinks in the tubing.

•Make certain that all plumbing connections are sealed and electrical connections tight and isolated.

•This brewer is heated at all times. Keep away from combustibles.

WARNING – • Exercise extreme caution when servicing electrical equipment.

•Unplug the brewer when servicing, except when electrical tests are specified.

•Follow recommended service procedures.

•Replace all protective shields or safety notices.

PROBLEM

All water LED's flash.

Cold Water Circulation

All dispense stations not working or all water & refill LED's flash and beep 3 times.

Note: Cooling failure or excessive bath and cabinet temperatures for m ore than 4 hours will result in touchpad lockout or no dispense. Note: Reset faul/timer by unplug- ging unit.

PROBABLE CAUSE

1.Bath water level low.

1.Cabinet cooling fan.

2.Bath recirculation pump.

3.Restricted water flow to cabinet water coil and bath.

REMEDY

Access bath fill valve and top off bath tank.

Replace fan (24vdc).

Note: Fan receives power when door switch is closed.

A)If not running, replace pump (120vac).

B)If no power, replace control board.

Clean or replace cabinet water strainer or recirculating manifold or check for kinked hose.

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Contents Phone 217 529-6601 FAX 217 JDF-4BUNN-O-MATIC Commercial Product Warranty User Notices ContentsElectrical Requirements Initial SET-UPCE Requirements Electrical HOOK-UPPlumbing Requirements Plumbing HookupPlumbing Connections Sanitize Switch Refrigeration SwitchOperating Controls Water Bath ValveOperating Controls Initial Fill LoadingFrozen Concentrates Initial Fill Ambient Concentrates Optional Dispenser USEPriming Press and Hold Models Refer to FigCleaning & Preventive Maintenance Daily Parts WashingWeekly Sanitizing Cleaning Annually Replace Pump Tubing Cleaning Monthly Clean Condenser Air FilterAdjustment & Optional Settings Total Dispense Ratio Set Up ProcedureTemperature Compensated Refractometer Method Product Brix % Mix RatioPer 3-second test Pump Speed ProgrammingChilled Water Flow Testing and Adjustment Adjustment & Optional SettingsCup Size Programming Portion Control Dispensers Only Dispenser LockoutService Lockout Adjustment & Optional Settings Password Protection Beeper Fault Dispense Fault ListCooling Fault List DBC display FaultRefill indicator when concentrate out is detected Dip Switch Function ListControls Off Audio feedback during dispenses104 Set Pump 4 RPM Concentrate B Function ListProblem TroubleshootingCold Water Circulation Probable CauseProblem Probable Cause Remedy TroubleshootingRefrigeration Dispenser Locked OutDispense/Rinse switch mem- brane open simultaneously Bottle adapter switch mem- braneWater only Concentrate onlyCant access programming Programming password feature Initial fill/setupPassword Nect fittingsIs powered from the step-down Fault codesOnce water is set, adjust motor Step-down transformerDifficulty brixing and/or weak bev Pump tubing Erage Problem Probable CauseStation Use of portable water pumpCoolant Schematic Diagram Schematic Wiring Diagram Schematic Wiring Diagram JDF-4 Dispense Deck Circuit Schematic Wiring Diagram JDF-4 Control Panel Circuit GND L1 N

S/N 0005473 & UP specifications

The Bunn S/N 0005473 & UP is a remarkable coffee brewing system that blends innovative technology with user-friendly features, catering to both commercial and home brewing needs. Known for its durability and reliability, this model has garnered acclaim among coffee enthusiasts and professionals alike.

One of the standout features of the Bunn S/N 0005473 & UP is its rapid brew technology. This system enables the brewing of high-quality coffee in less time than conventional methods. With a typical brewing cycle of just a few minutes, users can enjoy fresh coffee quickly, making it an ideal choice for busy environments like cafes, restaurants, and offices.

In terms of capacity, this Bunn model is equipped with a generous water reservoir that can hold several gallons, allowing for multiple brewing cycles without the need for constant refilling. This is particularly beneficial in high-demand settings where speed and efficiency are paramount. Furthermore, the system is designed to accommodate a variety of coffee types, from standard drip to specialty blends, providing versatility for users.

The Bunn S/N 0005473 & UP also features an adjustable brewing temperature, ensuring that the coffee is brewed at the optimal heat for extraction. This capability plays a crucial role in achieving the perfect flavor profile, allowing users to experiment with different beans and roasts.

Another notable characteristic of this model is its user-friendly interface. The intuitive controls enable both novice and experienced users to operate the machine with ease, reducing the learning curve associated with brewing great coffee. Additionally, maintenance is simplified with removable components that can be easily cleaned, promoting longevity and consistent performance.

Energy efficiency is also a key consideration in the design of the Bunn S/N 0005473 & UP. With a focus on reducing power consumption, this coffee maker operates discreetly in the background while remaining ready to brew at a moment’s notice.

Overall, the Bunn S/N 0005473 & UP stands out as a reliable and efficient coffee brewing system. With its combination of rapid brew technology, adjustable temperature settings, and user-friendly design, it caters to a wide range of coffee preferences and environments, ensuring that every cup is a delightful experience. This model continues to be a favorite among both casual drinkers and coffee connoisseurs.
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