Bunn HC-2 Manuel D’Utilisation

35

Test Procedure:
1. Disconnect the dispenser from the power source.
2. Disconnect the black wire and the blue/black wire

on electro/mechanical thermostats or the tan wires
on electronic thermostats.

3. With the switch in the “ON” lower position check

for continuity between the center and the upper
terminal. With the switch in the “OFF” upper posi-
tion no continuity should be present between
center and upper terminals.

If continuity is present as described, the heater “ON/
OFF” switch is operating properly.
If continuity is not present as described, replace the
switch.

Removal and Replacement:
1. Remove the switch mounting nut on the front of

the front panel.

2. Remove switch with wires attached from the rear

of the front panel.

3. Remove the wires from the switch terminals and

discard switch.

4. Connect the wires to the new switch, refer to fig.

32.

5. Push new switch through hole in the front panel

and secure with face nut.

FIG. 32 TANK HEATER SWITCH TERMINALS

P1219

1

2

3

FIG. 33 TRANSFORMER

P1289

Location:

The transformer is located behind the front

cover just to the right of the ballest on the dispenser
base.

Test Procedure:
1. Disconnect the dispenser from the power source.
2. Disconnect the two pin connector of the trans-

former from the fan.

3. Connect voltmeter, set to read at least 120 volts ac

across the black and white leads of the trans-
former connector.

4. Connect the dispenser to the power source. The

voltage indication should be approximately 120
volts ac.

5. Disconnect the dispenser from the power source.

If voltage is present as described the transformer is
operating properly.
If voltage is not present as described, replace the
transformer.

BLUBLK from Electro/
mechanical Thermostat
or TAN from Electronic
Thermostat

BLK from Terminal
Block (Electro/mechani-
cal)
TAN from Electronic
Thermostat

27591 031597