Bunn LCR-3 - Manual (Page 23)

23
Troubleshooting (Continued)
Service Required
Service Required
Replace Tubing
1. Pump Motor failure
2. RPM Sensor failure
3. Tubing pinched in rollers
____ PUMP FAULT
CHK PUMP WIRING
CHK RPM SENSOR
CHK TUBING AREA
Check Pump & Flow Rate Calibration, refer
to Field Calibration Procedures
The calculated Target RPM for the
pump indicated is out of range
____ TARGET RPM
TOO LOW !!
Service Required
Service Required
Service Required
1. Refill valve stuck open
2. Faulty refill probe
3. Faulty overflow switch
OVERFLOW
FAULT
Service Required
Service Required
Service Required
1. Tank Heater failure
2. Triac failure
3. Tank Temp. sensor failure
HEATING TIME
TOO LONG
CHECK HEATING
CIRCUIT
Screen Displayed Possible Cause Troubleshooting Procedures
Check water supply valve
Service Required
1. Water shut off to dispenser
2. Inlet Solenoid Valve failure
FILL TIME
TOO LONG
CHECK WATER
SUPPLY
Service Required
Service Required
1. Corresponding Temperature
Sensor Probe wire(s) broken
or disconnected
2. Corresponding Temperature
Sensor Probe wire(s) shorted
to housing, or to each other.
TANK SENSOR
OUT OF RANGE
CHECK FOR BAD
CONNECTIONS
CHECK WIRE
FOR SHORTS
41129 052208