Bunn LCA-2 LCC-2 - Advanced Diagnostic Codes; Temperature Sensor and Wire Faults; Pump and Cooler Faults

24
Screen Displayed Possible Cause Troubleshooting Procedures
Service Required
Service Required
Check to confirm that wire(s) are
not pinched between two surfaces
or connected to each other.
Service Required
Service Required
Service Required
Service Required
Service Required
Remove blockage source
Move machine to cooler location
Service Required
Service Required
1. Corresponding Temperature Sensor
Probe wire(s) broken or disconnected.
1. Corresponding Temperature Sensor
Probe wire(s) shorted to housing, or to
each other.
1. Corresponding Temperature Sensor
Probe wire(s) shorted to housing, or to
each other.
1. Corresponding Temperature Sensor
Probe wire(s) shorted to housing, or to
each other.
1. Motor failure
2. RPM Sensor failure
1. Motor failure
2. RPM Sensor failure
1. Thermoelectric Vents blocked
2. Ambient temperature too high
3. Fan failure
4. Thermoelectric chiller failure
FINS TEMP SENSOR
OUT OF RANGE
CHECK FOR BAD
CONNECTIONS
TANK TEMP SENSOR
OUT OF RANGE
CHECK WIRE FOR
SHORTS
COOL TEMP SENSOR
OUT OF RANGE
CHECK WIRE FOR
SHORTS
FINS TEMP SENSOR
OUT OF RANGE
CHECK WIRE FOR
SHORTS
LEFT PUMP FAULT!
CHK PUMP WIRING
CHK RPM SENSOR
CHK TUBING AREA
RT PUMP FAULT!
CHK PUMP WIRING
CHK RPM SENSOR
CHK TUBING AREA
COOLER FAULT!
CHECK FAN WIRING
CHECK FANS
FOR BLOCKAGE
Troubleshooting (Continued)
34766 112502