Bunn LCA-2A Corresponding Temperature Sensor, Evaporator temperature too high, Motor failure

Models: LCA-2 PC LCA-2A LCC-2

1 36
Download 36 pages 62.09 Kb
Page 31
Image 31

Troubleshooting (Continued)

Screen Displayed

 

Possible Cause

Troubleshooting Procedures

 

 

 

 

 

 

 

 

EVAP 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.

Evaporator temperature too high.

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEFT PUMP FAULT!

1.

Motor failure

Service Required

 

 

CHK PUMP WIRING

2.

RPM Sensor failure

Service Required

 

 

 

 

 

 

 

CHK RPM SENSOR

 

 

 

 

 

 

CHK TUBING AREA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT PUMP FAULT!

1.

Motor failure

Service Required

 

 

CHK PUMP WIRING

2.

RPM Sensor failure

Service Required

 

 

 

 

 

 

 

CHK RPM SENSOR

 

 

 

 

 

 

CHK TUBING AREA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOLER FAULT!

1.

Cabinet circulating fan failure

Service Required

 

 

EVAP TEMP TOO HI

2.

Ice build up on evaporator coils

Service Required

 

 

 

 

 

 

 

CHECK EVAP FAN

 

 

Service Required

 

 

CHK EVAP SENSOR

3.

Evaporator sensor failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOLING TIME

1.

Air intake filter clogged

Clean Air Filter

 

 

TOO LONG

2.

Wiring failure

Check wiring harness for breaks,

 

 

 

CHECK

AIR FILTER

 

 

shorts, open connectors

 

CHECK COOLING UNIT

3.

Compressor failure

Service Required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COND PROBE FAULT

1.

Concentrate buildup on probes

Check pump & tubing for proper

CHECK COND PROBES

 

 

installation. Clean probes

 

 

 

 

2.

Machine dispensing continously

Dispense

switch

failure,

Service

CHK DISP SWITCHES

 

 

Required

 

 

 

CHK CONNECTIONS

3.

Water flowing continously

Dispense

valve

leaking,

Service

 

 

 

 

 

Required

 

 

 

 

 

 

 

 

 

 

 

 

 

JUMPER FAULT!

1. Invalid wire harness configuation

Service Required

 

 

CONFIG NOT VALID

 

 

 

 

 

 

CHECK J-18

ON CONTROL BOARD

31

34766.1 010313

 

Page 31
Image 31
Bunn LCA-2A Corresponding Temperature Sensor, Evaporator temperature too high, Motor failure, RPM Sensor failure, Required

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.