Bunn LCC-2, LCA-2A, LCA-2 PC manual Screen Displayed Possible Cause

Page 30

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

3.

Tank Temp. sensor failure

 

 

CIRCUIT

 

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILL TIME TOO LONG

1.

Water shut off to dispenser

 

Check water supply shut-off

 

 

 

2.

Inlet Solenoid Valve failure

 

 

 

 

 

 

 

CHECK WATER SUPPLY

 

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.

 

 

 

 

 

 

2.

Evaporator temperature too low.

Service Required

CHECK

FOR BAD

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

2.

Product cabinet temperature too high.

Service Required

SHORTS

 

 

 

 

 

 

 

 

 

30

34766.1 010313

 

Image 30
Contents LCA-2 LCA-2A LCA-2 PC LCC-2 Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Introduction37881.0000 28181.0003 11646.0002 User Notices00656.0001 40054.0000 00824.0002 47624.0000Models with Master ON/OFF Switch Field Wiring Terminal Block DiagramModels without Master ON/OFF Switch Electrical RequirementsPlumbing Requirements Electrical HOOK-UPPlumbing HOOK-UP Installing the Drip Tray and Flip Down CUP Tray Initial SET-UPOperating Controls and Interface 1513Rate Selecting the Correct Pump TubingDispense Oz/sec 16 I.D. TubingSetting Dispenser Flow Rate Removing the restrictorsReprogramming the Dispenser Flow Rate Adjusting MIX Ratios Procedure for Adjusting the Mix Ratio to TasteFlavorGard Feature Rinse Alarm FeatureAlarm Mode BIB Empty Lockout Feature Brew Temperature Lockout Feature351 + Programming the DispenserMenu Screen Action Description Tank Temp Exit 3/16Menu Screen Lock Flavor ? Exit YES Flavors Locked LF Disp VolumeRT Disp Volume 0oz +Ready Temp Menu Screen Tank TempExit + Cabinet TempAction Description Menu ScreenRinse Time ? 12 Hrs + CAL Left Pump ? Pull DispenseCAL RT WTR Flow Pull Dispenser Menu Screen ActionCAL Right Pump ? Pull Dispenser CAL Right Side ? Exit YESTest LED’S ? No Exit YES Test Switches ? WTR Start DelayWTR Stop Delay Test Refill ? Exit YESInitial Fill & Heat Loading 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 PCDaily Parts Washing Cleaning & Preventative MaintenanceGeneral Cleaning and Sanitizing Procedures Daily Rinsing Weekly SanitizingPreventive Maintenance Replacing the Pump TubingDraining the HOT Water Tank Troubleshooting Power LED OFFFront Panel LED Display Messages Internal Fault Left Refill LED onTubing kinked or blocked Check Tubing installation Troubleshooting Dispenser Diagnostics-LCD DisplayBIB Not properly connected Check BIB Connector Fittings Possible CauseScreen Displayed Possible Cause Air intake filter clogged Clean Air Filter Corresponding Temperature SensorEvaporator temperature too high Wiring failureCalibrating the Left Side Dispenser Oz/sec 74 ml/sec w/o flow restrictor Field Calibrating the Hot Water Flow RateOz/sec 53 ml/sec w/ flow restrictor Calibrating the Right Side DispenserField Calibrating the Empty BIB Warning Calibrating The Empty BIB ThresholdSchematic Wiring Diagram LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2CSchematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC
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Manual 34 pages 56.59 Kb Manual 26 pages 22.61 Kb

LCA-2 PC, LCA-2A, LCC-2 specifications

The Bunn LCC-2, LCA-2 PC, and LCA-2A are high-performance commercial coffee brewers designed to meet the demands of busy coffee shops, restaurants, and other food service establishments. These machines are known for their efficiency, durability, and advanced brewing technologies, making them popular choices in the industry.

Starting with the Bunn LCC-2, this brewer is recognized for its compact design and ease of use. It has a brewing capacity of up to 3.8 gallons per hour, ensuring that coffee is ready quickly during peak hours. The LCC-2 uses a pour-over brewing method, which means that water is heated to the ideal brewing temperature and then poured over coffee grounds for optimal extraction. One of its standout features is the digital temperature control, which allows operators to adjust brewing temperatures easily for different coffee types. Additionally, the Bunn LCC-2 features a stainless steel construction that enhances durability and provides a sleek look for any commercial kitchen.

Moving on to the Bunn LCA-2 PC, this model includes programmable capabilities, making it perfect for establishments that require consistency and convenience. The LCA-2 PC allows users to preset brewing schedules and customize brew cycles, ensuring that each pot of coffee meets specific flavor profiles. This model is designed with a large-capacity brewing system that can produce up to 7.5 gallons of coffee per hour, making it an ideal choice for high-demand environments. It also boasts a built-in hot water faucet, which provides instant hot water for other beverages or culinary applications. The LCA-2 PC's advanced brewing automation helps maintain optimal brew quality while minimizing waste.

Lastly, the Bunn LCA-2A is an advanced version that focuses on automation and efficiency. This brewer features a state-of-the-art digital brew timer, which allows precise control over brew times, leading to consistent flavor extraction. The LCA-2A also integrates with Bunn’s patented brewWISE technology, which tracks brew recipes and monitors performance. The intuitive interface allows for easy operation, even for staff who may be less experienced with coffee brewing. With a capacity of up to 4 gallons per hour and a durable stainless steel frame, the LCA-2A ensures longevity while delivering exceptional coffee.

In summary, the Bunn LCC-2, LCA-2 PC, and LCA-2A represent the pinnacle of commercial coffee brewing technology. Their unique features, including programmable settings, large brewing capacities, and durable constructions, cater to the diverse needs of the food service industry. Each model emphasizes convenience, flexibility, and quality, making them invaluable assets in any professional coffee environment.