Bunn 34766.0000S Troubleshooting Continued, Screen Displayed, Possible Cause, Check Cooling Unit

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
CHK EVAP SENSOR		3.	Evaporator sensor failure	Service Required
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

29 34766 010407