Bunn 34766.0000S manual Screen Displayed Possible Cause

Page 28

Troubleshooting (Continued)

Screen Displayed

 

Possible Cause

 

Troubleshooting Procedures

 

 

 

 

 

 

 

 

OVERFLOW CUP

1.

Refill valve stuck open

 

Service Required

FULL. EMPTY CUP

2.

Faulty refill probe

 

Service Required

 

 

 

 

 

 

 

 

 

 

 

3.

Faulty overflow switch

 

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEATING TIME TOO

1.

Tank Heater failure

 

Service Required

LONG

2.

Triac failure

 

Service Required

 

 

 

 

 

 

CHECK HEATING

 

 

 

 

CIRCUIT

3.

Tank Temp. sensor failure

 

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILL TIME TOO LONG

1.

Water shut off to dispenser

 

Check water supply shut-off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHECK WATER SUPPLY

2.

Inlet Solenoid Valve failure

 

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK TEMP SENSOR

1.

Corresponding Temperature

Sensor

Service Required

OUT OF RANGE

 

Probe wire(s) broken or disconnected

 

CHECK

 

 

 

 

 

 

 

 

FOR BAD

 

 

 

 

CONNECTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL TEMP SENSOR

1.

Corresponding Temperature

Sensor

Service Required

OUT OF RANGE

 

Probe wire(s) broken or disconnected.

 

CHECK

 

 

2.

Product cabinet temperature too low.

Service Required

 

FOR BAD

CONNECTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EVAP TEMP SENSOR

1.

Corresponding Temperature

Sensor

Service Required

OUT OF RANGE

 

Probe wire(s) broken or disconnected.

 

CHECK

 

 

 

 

 

 

 

FOR BAD

2.

Evaporator temperature too low.

Service Required

CONNECTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK TEMP SENSOR

1.

Corresponding Temperature

Sensor

Service Required

OUT OF RANGE

 

Probe wire(s) shorted to housing, or to

 

 

 

 

 

 

 

each other.

 

 

CHECK WIRE FOR

 

 

 

 

SHORTS

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL TEMP SENSOR

1.

Corresponding Temperature

Sensor

Service Required

OUT OF RANGE

 

Probe wire(s) shorted to housing, or

 

 

 

 

 

 

 

to each other.

 

 

CHECK

WIRE FOR

 

 

 

 

SHORTS

2.

Product cabinet temperature too high.

Service Required

 

 

 

 

 

 

 

 

 

28

34766 011604

 

Image 28
Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents IntroductionUser Notices 00656.000137881.0000 28181.0003 11646.0002 40054.0000Field Wiring Terminal Block Diagram Models without Master ON/OFF SwitchModels with Master ON/OFF Switch Electrical RequirementsPlumbing Requirements Initial SET-UPElectrical HOOK-UP Plumbing HOOK-UPRemoving the restrictors Setting Dispenser Flow RateReprogramming the Dispenser Flow Rate Selecting the Correct Pump Tubing DispenseRate Oz/sec 16 I.D. TubingOperating Controls and Interface 1513Initial Fill & Heat Rinse Alarm Feature FlavorGard FeatureAlarm Mode BIB Empty Lockout Feature Brew Temperature Lockout FeatureProgramming the Dispenser Menu Screen Action Description Tank Temp351 + Exit 3/16LF Disp Volume RT Disp VolumeMenu Screen Lock Flavor ? Exit YES Flavors Locked 0oz +Menu Screen Tank Temp Exit +Ready Temp Cabinet TempMenu Screen Rinse Time ? 12 Hrs +Action Description CAL Left Pump ? Pull DispenseMenu Screen Action CAL Right Pump ? Pull DispenserCAL RT WTR Flow Pull Dispenser CAL Right Side ? Exit YESWTR Start Delay WTR Stop DelayTest LED’S ? No Exit YES Test Switches ? Test Refill ? Exit YESLoading the Concentrate Priming the Concentrate LinesOperating the Pull & Hold Dispenser Filling Cambros or other large containersOperating the Preset Portion Control Dispenser Models LCA-2 PC, LCA-2C PC, LCA-2A PCCleaning & Preventative Maintenance General Cleaning and Sanitizing Procedures Daily RinsingDaily Parts Washing Weekly SanitizingPreventive Maintenance Replacing the Pump TubingDraining the HOT Water Tank Power LED OFF TroubleshootingFront Panel LED Display Messages Internal Fault Left Refill LED onConcentrate BIB is Empty Empty BIB WarningTroubleshooting Dispenser Diagnostics-LCD Display Possible CauseScreen Displayed Possible Cause Left Pump Fault CHK Pump WiringCHK RPM Sensor CHK Tubing Area RT Pump Fault CHK RPM Sensor CHK Tubing Area Cooler FaultCalibrating the Left Side Dispenser Field Calibrating the Hot Water Flow Rate Oz/sec 53 ml/sec w/ flow restrictorOz/sec 74 ml/sec w/o flow restrictor Calibrating the Right Side DispenserField Calibrating the Empty BIB Warning Calibrating The Empty BIB ThresholdVolts AC 2 Wire Schematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC

34766.0000S specifications

The Bunn 34766.0000S is a commercial-grade coffee maker that stands out for its efficiency and precision in brewing. Designed for high-volume environments such as restaurants, cafes, and offices, this coffee brewer is engineered to deliver a consistent and robust coffee flavor with every brew.

At the heart of the Bunn 34766.0000S is its unique brewing system, which employs a patented technology to optimize extraction. This system ensures that water is heated to the ideal temperature, usually around 200°F, for optimal flavor extraction from coffee grounds. The precise temperature control is essential in commercial settings, where the quality of coffee can significantly affect customer satisfaction.

The Bunn 34766.0000S features a stainless steel construction, which not only enhances its durability but also allows for easy cleaning and maintenance. The sleek design fits comfortably in any kitchen setting, and its compact size makes it suitable for countertops with limited space. With a 12-cup capacity, this machine is capable of producing multiple pots of coffee quickly, ensuring that demand is met during peak hours.

One of the standout features of the Bunn 34766.0000S is its Smart Brew technology. This innovative feature allows for customizable brewing settings, enabling users to adjust brew strength and flavor profiles according to their specific preferences. The machine includes a programmable timer, which can be set for automatic brewing, a significant advantage for businesses that require coffee to be ready at specific times.

Additionally, the Bunn 34766.0000S comes equipped with a built-in water tank, which keeps water at the optimal brewing temperature for instant coffee production. This feature minimizes waiting times and ensures that coffee is always fresh.

In terms of safety, the Bunn 34766.0000S is fitted with an advanced safety shut-off mechanism to prevent overheating and ensure that the machine operates within safe temperature limits. This reliability is crucial for busy establishments where operational efficiency is paramount.

In summary, the Bunn 34766.0000S is an exceptional choice for businesses looking for a dependable, high-quality coffee brewing solution. It combines innovative brewing technologies, user-friendly features, and a robust design to meet the demands of any commercial environment, making it an indispensable tool for serving delicious coffee consistently.