Bunn LCR-3 Manual De Usuario

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EVAP TEMP SENSOR 
OUT OF RANGE
CHECK FOR BAD
CONNECTIONS
CHECK WIRE FOR
SHORTS
COOL TEMP SENSOR 
OUT OF RANGE
CHECK FOR BAD
CONNECTIONS
CHECK WIRE FOR
SHORTS
COOLER FAULT!
EVAP TEMP TOO HI
CHECK EVAP FAN
CHK EVAP SENSOR
COOLING TIME
TOO LONG
CHECK AIR FILTER
CHECK COOLING UNIT
Service Required
Service Required
Service Required
Clean Air Filter
Check wiring harness for breaks,
shorts, open connectors
Service Required
Screen Displayed 
 
Possible Cause 
 
 
 
Troubleshooting Procedures
Troubleshooting (Continued)
Service Required
Service Required
Service Required
1.  Evaporator temperature too high or too 
low. 
2.  Corresponding Evaporator Sensor Probe 
wire(s) broken or disconnected.
3.   Corresponding  Temperature  Sensor 
Probe  wire(s)  shorted  to  housing,  or 
to each other.
1.   Cold Sensor  wire(s) shorted to housing, 
or to each other.
2.  Product  cabinet  temperature  too 
high.
3.  Product cabinet temperature too low.
COND PROBE FAULT 
CHECK COND PROBES
CHK DISP SWITCHES
CHK CONNECTIONS
JUMPER FAULT! 
CONFIG NOT VALID
CHECK J-18
ON CONTROL BOARD
1.  Concentrate buildup on probes
2.  Machine dispensing continously
3.  Water flowing continously
1. Invalid wire harness configuation
Check pump & tubing for proper 
installation. Clean probes
Dispense  switch  failure,  Service 
Required
Dispense  valve  leaking,  Service 
Required
Service Required
Service Required
Service Required
Service Required
1.  Cabinet circulating fan failure
2.  Ice build up on evaporator coils
3.  Evaporator sensor failure
1.  Air intake filter clogged
2.  Wiring failure
3.  Compressor failure
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