Bunn CDBCF Troubleshooting Refill Circuit, Fill or refill does not shut OFF ON/OFF Switch on

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TROUBLESHOOTING (cont.)

REFILL CIRCUIT (cont.)

PROBLEM

Fill or refill does not shut "OFF" (ON/OFF Switch "ON")

Fill or refill does not shut "OFF" (ON/OFF Switch "OFF")

PROBABLE CAUSE

1.Lime build up on probe

2.Water Level Probe Sensing Sys- tem

3. Refill valve or control board

4.Water is too conductive for proper operation when using the factory setting of sensing thresh- old.

1. Refill valve or control board

REMEDY

Remove Probe and check for lime deposits on tip. Clean and reinstall.

Disconnect the brewer from the power source. Disconnect the J3 connector from the control board. Check for continuity from the nut on top of the level probe to pin 1 of the plug, continuity should be present. Pull the temperature probe up about an inch from the grommet. Check for continuity from the outside surface of the temperature probe and pin 4 of the plug, continuity should be present. Connect the J3 plug to the control board and proceed to step 3.

Press ON/OFF switch to "ON" (In- dicator lamp should be lit). If wa- ter continuously flows out of air vent tube, disconnect the brewer from the power source. If water flow stops, replace the control board. If water flow does not stop, repair or replace the refill sole- noid. (See page 29)

Reset the Water Sensing Thresh- old Adjustment Procedures on page 9.

If water continuously flows out of air vent tube, disconnect the brewer from the power source. If water flow does not stop, repair or replace the refill solenoid. If the valve closes when power is re- moved, replace the control board. (See page 23)

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Contents DIS Vers ION BUNN-O-MATIC Commercial Product Warranty ContentsIntroduction User Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Brew Switch ON/OFF SwitchReady Indicator Temperature IndicatorsCoffee Brewing Initial SET-UPCleaning POUR-OVER FeatureSetting Brew Temperature CDBC, Single CD Adjustments & Optional SettingsWater Sensing Threshold Adjustment Procedure Adjustments & Optional SettingsPulse Brew Setup Procedure Cdbc & Single CD Before troubleshooting this brewer, check for the following TroubleshootingRefill Circuit Problem Probable Cause TroubleshootingRemedy Fill or refill does not shut OFF ON/OFF Switch on Troubleshooting Refill CircuitWater does not heat to proper temperature Heating Circuit ProblemProblem Probable Cause Troubleshooting Heating CircuitProbe, tank or tank heater Control Board Spitting or excessive steaming Temperature Probe ContWater supply Lime build upBrew cycle will not start Display flashing Brewing Circuit Problem Probable CauseBrewing Circuit Problem Probable Cause RemedyDripping from spray head Lime build up Water temperatureRequired Weak beverage SprayheadTroubleshooting Brewing Circuit Cause Things to Check DiagnosticsComponent Access ServiceContents Disconnect the 11-pin connector from the control panel ServiceControl Board Switch Panel Switch PanelDispense Valve Dispense ValveLimit Thermostat Limit ThermostatTank Heater Tank HeaterTank Heater Wiring Service Tank HeaterCheck for continuity across the refill valve coil terminals Refill ValveLocation Warmer Elements120V AC 2 Wire 120/208V AC 3 Wire 120/240V AC 3 Wire Schematic Wiring Diagram Cdbc 15, 20Schematic Wiring Diagram CDBCP/CDBCPF 15, 20 120/208V AC 3 Wire 120/240V AC 3 Wire 120V AC 2 Wire200V AC Wire Single Phase100V AC

CDBCP, CDBCFP, CDBCF, S/N CDBC020213 specifications

The Bunn CDBCFP, S/N CDBC020213, is part of the CDB family of coffee brewers, specifically designed to offer exceptional flavor and brewing efficiency for commercial settings. This advanced machine is a significant upgrade from traditional brewing systems, focusing on precision, consistency, and ease of use.

One of the main features of the Bunn CDBCFP is its digital control system, which allows operators to easily customize brew recipes and temperatures. This feature not only enhances the flavor profile of the brewed coffee but also ensures that each cup meets customer expectations. The machine is equipped with a patented infusion technology that allows for full saturation of coffee grounds, maximizing extraction and delivering a robust flavor.

The Bunn CDBCFP also boasts a large capacity, making it ideal for high-demand environments like cafes, restaurants, and offices. The unit can brew up to 3.8 gallons of coffee per hour, ensuring a steady supply even during peak times. The design includes a dual-funnel brewing system, which helps to distribute water evenly over the coffee grounds, resulting in a more consistent extraction.

In terms of its construction, the CDBCFP features a durable stainless-steel body that withstands the rigors of commercial use. This not only ensures longevity but also makes it easy to clean and maintain. The brewer is designed with a sleek aesthetic, fitting effortlessly into any modern kitchen or service area.

Another notable characteristic is the machine's energy efficiency. The Bunn CDBCFP is designed to operate with low energy consumption, helping businesses to reduce their overall operational costs. Additionally, the brewer's quick recovery time means that it can be ready to brew within minutes, further enhancing its efficiency.

The Bunn CDBCFP, S/N CDBC020213, is also compatible with a variety of coffee types, allowing businesses to diversify their offerings. Whether it’s gourmet blends, single-origin coffees, or sustainability-focused products, the CDBCFP can handle them all with ease.

In summary, the Bunn CDBCFP stands out in the commercial coffee brewing landscape due to its digital controls, large brewing capacity, durable construction, energy efficiency, and versatility. For establishments looking to deliver high-quality coffee with reliability, this brewer is a top choice.
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