Bunn S/N SNG0033000 & UP Power Supply User Manual


 
Page 43
TROUBLESHOOTING (cont.)
Troubleshooting ProceduresPossible Cause
Screen Displayed
1. Water shut off to brewer
2. Inlet Solenoid Valve failure
3. Control Board Failure
1. Temperature Sensor Probe wire(s)
broken or not making connection.
1. Temperature Sensor Probe
wire(s) shorted to housing, or to
each other.
Check water supply shut-off
Service required
Service required
Check wire and connection of both
black and white wires of temperature
probe.
Check to confirm that wire(s) are
not pinched between two surfaces
or connected to each other.
CHECK WATER
SUPPLY
FILL TIME TOO
LONG
CHECK FOR BAD
CONNECTIONS
TEMP SENSOR
OUT OF RANGE
CHECK WIRE FOR
SHORTS
TEMP SENSOR
OUT OF RANGE
35879.1 071405