Bunn HC-2 HC-3 Operating & Service Manual page 7

TROUBLESHOOTING (cont.)
PROBLEM
Product will not dispense
PROBABLE CAUSE
1. No water
2. No power or incorrect voltage to
the dispenser
3. Dispense switch
4. Dispense solenoid valve
(Hot or Cold)
5. Solenoid valve (Inlet)
6. Level control board and probe
7. Overflow protection switch
8. Auger drive
7
REMEDY
Water lines and valves to the
dispenser must be open.
(A1) Check the terminal block for
120 volts across the black and
white terminals on two wire 120
volt dispenser.
(A2) Check the terminal block for
120 volts across the red and
white terminal and the black and
white terminal on three wire
120/240 volt dispenser.
(A3) Check the terminal block for
240 volts across the white and
black terminal on two wire 240
volt dispenser.
(B) Check circuit breakers or
fuses.
Refer to Service - Dispense
Switch for testing procedure.
See page 18
Refer to Service - Dispense
solenoid valve for testing proce-
dures. See page 30 or 31
Refer to Service - Solenoid Valve
(Inlet) for testing procedures.
See page 32
Refer to Service - Level Control
Board and Probe for testing
procedures. See page 26
Refer to Service - Overflow
protection switch for testing
procedures. See page 28
Refer to Service - Auger Drive.
See page 12
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