Bunn FMD-3 service manual TANK HEATER SWITCH cont, SERVICE cont

Models: FMD-3

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TANK HEATER SWITCH (cont.)

SERVICE (cont.)

TANK HEATER SWITCH (cont.)

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the black wire from the power supply and the black wire from the control thermostat.

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.Refer to the hopper section in this manual and remove the hopper assemblies and the hopper support plate.

2.Remove the switch mounting nut on the front of the front panel.

3.Remove switch with wires attached from the rear of the front panel.

4.Remove the wires from the switch terminals and discard switch.

5.Connect the wires to the new switch, refer to fig. 35.

5. Push new switch through hole in the front panel and secure with face nut.

7.Refer to the hopper section in this manual and install the hopper support plate and the hopper assemblies.

BLK to Control Thermostat (Mechanical Thermostat) WHI/BRN to Control Thermostat (Electronic Thermostat)Manual background

BLK from Power Supply (Mechanical Thermostat) WHI/BRN to Control Thermostat (Electronic Thermostat)

P1219

FIG. 35 TANK HEATER SWITCH TERMINALS

34

28364 071598

 

Page 34
Image 34
Bunn FMD-3 service manual TANK HEATER SWITCH cont, SERVICE cont