Bunn 34766.0000S manual Troubleshooting, Front Panel LED Display Messages, Power LED OFF

Page 25

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.

•Only qualified service personnel should perform inspection, testing, and repair of electrical equipment.

•Shorting the terminals or the application of external voltages to electronic components may result in component or circuit 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 wire 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 avoid twists and kinks in the tubing.

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

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

WARNING:

•Exercise extreme caution when servicing electrical equipment.

•Disconnect the brewer from the power source when servicing, except when electrical tests are specified. The red “Power LED” on the door indicates that the unit is connected to AC Power.

•Follow recommended service procedures.

•Replace all protective shields or safety notices.

Front Panel LED Display Messages

Power LED “OFF”

Dispenser Not plugged in.

Check Power Cord

No AC Power

AC Circuit Breaker OFF

Check the AC Power Circuit Breaker

 

 

Service Required

 

 

 

 

 

 

Ready LED “OFF”

Usage has exceeded the

Check Tank Temp Setting

Water Temp. Too Low

capacity of the Tank Heater

Check Ready Temp. Setting

 

 

Service Required: Change the Supply Voltage,

 

 

see Optional Field Wiring

 

 

 

 

 

 

Rinse LED “ON”

Rinse Cycle Required

Rinse Dispenser, see Rinse Procedure

Rinse Timer

 

 

 

 

 

 

 

 

Rinse LED “FLASHING”

Dispenser Locked Out

Rinse Dispenser, see Rinse Procedure

Rinse Lockout Enabled

Rinse Cycle Required

 

 

 

 

 

 

 

Portion LED “ON”

Alternate Portion Dispenser

Activate the Dispenser within 5 sec. to

Portion Dispense

Volume #2 has been selected

dispense the pre-selected volume.

Enabled

 

 

 

 

 

25

34766 042304

 

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisBUNN-O-MATIC Commercial Product Warranty Introduction Contents00656.0001 User Notices37881.0000 28181.0003 11646.0002 40054.0000Models without Master ON/OFF Switch Field Wiring Terminal Block DiagramModels with Master ON/OFF Switch Electrical RequirementsInitial SET-UP Plumbing RequirementsElectrical HOOK-UP Plumbing HOOK-UPRemoving the restrictors Setting Dispenser Flow RateReprogramming the Dispenser Flow Rate Dispense Selecting the Correct Pump TubingRate Oz/sec 16 I.D. Tubing1513 Operating Controls and InterfaceInitial Fill & Heat Rinse Alarm Feature FlavorGard FeatureAlarm Mode Brew Temperature Lockout Feature BIB Empty Lockout FeatureMenu Screen Action Description Tank Temp Programming the Dispenser351 + Exit 3/16RT Disp Volume LF Disp VolumeMenu Screen Lock Flavor ? Exit YES Flavors Locked 0oz +Exit + Menu Screen Tank TempReady Temp Cabinet TempRinse Time ? 12 Hrs + Menu ScreenAction Description CAL Left Pump ? Pull DispenseCAL Right Pump ? Pull Dispenser Menu Screen ActionCAL RT WTR Flow Pull Dispenser CAL Right Side ? Exit YESWTR Stop Delay WTR Start DelayTest LED’S ? No Exit YES Test Switches ? Test Refill ? Exit YESPriming the Concentrate Lines Loading the ConcentrateFilling Cambros or other large containers Operating the Pull & Hold DispenserModels LCA-2 PC, LCA-2C PC, LCA-2A PC Operating the Preset Portion Control DispenserGeneral Cleaning and Sanitizing Procedures Daily Rinsing Cleaning & Preventative MaintenanceDaily Parts Washing Weekly SanitizingReplacing the Pump Tubing Preventive MaintenanceDraining the HOT Water Tank Power LED OFF TroubleshootingFront Panel LED Display Messages Left Refill LED on Internal FaultConcentrate BIB is Empty Empty BIB WarningPossible Cause Troubleshooting Dispenser Diagnostics-LCD DisplayScreen Displayed Possible Cause CHK Pump Wiring Left Pump FaultCHK RPM Sensor CHK Tubing Area RT Pump Fault CHK RPM Sensor CHK Tubing Area Cooler FaultCalibrating the Left Side Dispenser Oz/sec 53 ml/sec w/ flow restrictor Field Calibrating the Hot Water Flow RateOz/sec 74 ml/sec w/o flow restrictor Calibrating the Right Side DispenserCalibrating The Empty BIB Threshold Field Calibrating the Empty BIB WarningVolts 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.
Top Page Image Contents