Bunn HC-2 HC-3 Manual De Usuario
18
SERVICE (cont.)
DISPENSE SWITCH
P1196.70
Location:
The dispense switches are located on the lower
outside of the dispenser door.
NOTE: The center dispense switch is for HC-3 Models
only.
NOTE: The center dispense switch is for HC-3 Models
only.
Test Procedure:
1.
1.
Disconnect the dispenser from the power source.
2.
Open the dispenser door and remove the bottom
door cover.
door cover.
3.
Disconnect the connector of the dispense switch
to be tested from the connector on the door
interconnect wiring harness.
to be tested from the connector on the door
interconnect wiring harness.
4.
Check for voltage across the black and red/black
wires for the right dispense switch, black and
red/white wires for the center dispense switch or
the black and red wires for the left dispense
switch in the connector of the door interconnect
wiring harness. Connect the dispenser to the
power supply. The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 120 volts ac for three wire 120/208 volt or 120/
240 volt models.
c) 240 volts ac for two wire 240 volt models.
wires for the right dispense switch, black and
red/white wires for the center dispense switch or
the black and red wires for the left dispense
switch in the connector of the door interconnect
wiring harness. Connect the dispenser to the
power supply. The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 120 volts ac for three wire 120/208 volt or 120/
240 volt models.
c) 240 volts ac for two wire 240 volt models.
5. Disconnect the dispenser from the power source.
If voltage is present as described, proceed to #6.
If voltage is not present as described, refer to the wir-
ing diagram and check the dispenser wiring harness.
If voltage is not present as described, refer to the wir-
ing diagram and check the dispenser wiring harness.
6.
Check for continuity across the wires removed
from the dispense switch with the switch in the
“ON” pressed position. Continuity must not be
present when the switch is in the “OFF” released
position.
from the dispense switch with the switch in the
“ON” pressed position. Continuity must not be
present when the switch is in the “OFF” released
position.
If continuity is present as described, reconnect the
connector to the door interconnect wiring harness, the
switch is operating properly.
If continuity is not present as described, replace the
switch.
connector to the door interconnect wiring harness, the
switch is operating properly.
If continuity is not present as described, replace the
switch.
Removal and Replacement
1.
1.
Open the dispenser door.
2.
Remove the six #8-32 screws securing the bot-
tom door cover and remove cover.
tom door cover and remove cover.
3.
Disconnect the connector on the dispense switch
to be removed from the door interconnect wiring
harness connector.
to be removed from the door interconnect wiring
harness connector.
4.
Remove the mounting nut from the dispense
switch and remove switch from the front side of
the door.
switch and remove switch from the front side of
the door.
5.
Install new switch through the front of the door
and secure with mounting nut.
and secure with mounting nut.
6.
Reconnect the connector on the dispense switch
to the connector on door interconnect wiring har-
ness.
to the connector on door interconnect wiring har-
ness.
7.
Reinstall the door bottom cover using six #8-32
screws.
screws.
8.
Refer to the illustration below when reinstalling
wires.
wires.
P1205.58
FIG.8 DISPENSE SWITCH
FIG. 9 DISPENSE SWITCH CONNECTORS
27591 031597