Bunn JDF-2 manual Troubleshooting, Problem, Cooling system failure or DBC fault, Remedy

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TROUBLESHOOTING (cont.)

PROBLEM

Refrigeration

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.

Dispenser Locked Out

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

Hint: Display light goes out during dispenser lockout feature, if the unit has lighted graphics.

Cooling system failure or DBC fault 3.

PROBABLE CAUSE

1.Compressor ON/OFF switch.

2.Dirty condenser filter or fins.

3.Condenser fan not running.

4.Compressor relay not activat- ing.

5.Compressor not running.

6.Compressor running and not cooling.

1.Dispenser lockout password set.

1.Refrigeration or cold water recir- culation system.

REMEDY

Check for "ON" position or no con- tinuity - replace switch.

Clean or replace condenser filter.

Replace fan motor or check fan blades for obstructions.

Check compressor relay coil for 120vac.

NOTE: Aleays check power with coil attached.If no 120vac - replace board. If yes, 120vac - replace relay.

Note: Relay contacts normally open.

Check compressor thermal overload (N/C). If open check for dirty con- denser filter or adequate ventilation and space around machine.

Check refrigeration system for leaks and proper charge.

See page 17 for instruction on how to reset or change password.

Check all previous items that pre- tain to refrigeration or cold water recirculation

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Contents JDF-2 Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents User NoticesPlumbing Requirements Initial SET-UPElectrical Requirements CE RequirementsPlumbing Requirements Initial FillPlumbing Hookup LoadingPriming Frozen ConcentratesSanitize Switch Refrigeration SwitchRefrigeration Switch Operating ControlsOperating Controls Press and Hold Models Refer to Fig Dispenser USEPortion Control Models Refer to Fig Daily Parts Washing Cleaning & Preventive MaintenanceWeekly Sanitizing Cleaning Cleaning Monthly Clean Condenser Air Filter Annually Replace Pump TubingAdjustment & Optional Settings Temperature Compensated Refractometer MethodProduct Brix % Mix RatioPer 3-second test Adjustment & Optional Settings Pump Speed Programming Cup Size Programming Portion Control Dispensers OnlyAdjustment & Optional Settings Dispenser Lockout Service LockoutAdjustment & Optional Settings Password ProtectionCooling Fault List Dispense Fault ListBeeper Fault DBC display FaultControls Off Dip Switch Function ListRefill indicator when concentrate out is detected Audio feedback during dispensesFunction List Access bath fill valve and top off bath tank TroubleshootingProblem Probable Cause All water LEDs flashCooling system failure or DBC fault TroubleshootingProblem RemedyRefill LED not extinguishing Bottle adapter switch mem- braneDispense touchpad All stations dispense concentrate Main water supply OnlyConcentrate only Problem Probable Cause RemedyWater only Password Initial fill/setupCant access programming Programming password feature Nect fittingsOnce water is set, adjust motor Fault codesIs powered from the step-down Step-down transformerUse of portable water pump Difficulty brixing and/or weak bev Pump tubing ErageStation Difficulty brixing bag-in-boxCoolant Schematic Diagram Schematic Wiring Diagram Schematic Wiring Diagram Schematic Wiring Diagram JDF-2 Control Panel Circuit Schematic Wiring Diagram JDF-2 Remaining Circuits

JDF-2 specifications

The Bunn JDF-2 is a cutting-edge coffee brewing system designed for high-performance environments such as coffee shops, restaurants, and offices. This versatile machine combines advanced brewing technologies with user-friendly features, making it a popular choice among coffee aficionados and professionals alike.

One of the standout features of the Bunn JDF-2 is its ability to brew coffee quickly and efficiently. The machine boasts an innovative brewing system that utilizes an advanced heat exchange technology, ensuring that water is heated to the optimal brewing temperature in no time. This results in a rapid brew time, allowing operators to serve freshly brewed coffee continuously, even during peak hours.

The Bunn JDF-2 is equipped with a digital control interface that allows users to customize their brewing settings with ease. This interface features adjustable brew times, water temperatures, and batch sizes, allowing baristas to fine-tune each brew to achieve the perfect flavor profile. Additionally, the machine can store multiple recipe presets, enabling quick access to different brewing styles.

Durability and reliability are also key characteristics of the Bunn JDF-2. Constructed from high-quality materials, it is designed to withstand the rigors of everyday use. This commercial-grade machine is built to last, ensuring that businesses can rely on it for consistent performance over time. The JDF-2 also incorporates a variety of safety features, including automatic shut-off mechanisms and easy-access components for maintenance, making it a safe choice for busy environments.

The Bunn JDF-2 employs a dual brewing system, which can brew both regular and decaffeinated coffee simultaneously. This feature is particularly beneficial for establishments that cater to diverse customer preferences. The machine's capabilities also extend to brewing specialty beverages, further enhancing its versatility.

In terms of design, the Bunn JDF-2 presents a sleek and modern aesthetic that complements any coffee shop or commercial kitchen. Its compact size allows for easy integration into existing workflows, maximizing space efficiency without compromising performance.

Overall, the Bunn JDF-2 stands out as a premier choice for those seeking a powerful, efficient, and user-friendly coffee brewing system. With its advanced technologies, customizable settings, and robust construction, it meets the demands of both high-volume coffee operations and discerning coffee lovers.
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