Bunn HC-3 service manual Tank Heater, Refer to when reconnecting the wires to the tank heater

SERVICE (cont.)

TANK HEATER (cont.)

5.Check for continuity across the tank heater termi- nals.

If continuity is present as described, reconnect the wires, the tank heater is operating properly.

If continuity is not present as described, replace the tank heater.

NOTE - If the tank heater remains unable to heat, remove and inspect heater for cracks in the sheath.

Removal and Replacement:

1.Shut-off water supply to the dispenser.

2.Disconnect the water supply tube on the tank lid.

3.Disconnect the black wires on the limit thermo- stat.

4.Disconnect the black wire and the white or red wire from the tank heater terminals.

5.Disconnect the pink wire from the liquid level probe.

6.Remove the thermostat capillary bulb by firmly pulling-up on the capillary at the tank lid. This will disengage the grommet from the tank lid.

7.Remove the ten #8-32 nuts securing the tank lid to the tank.

8.Remove tank lid with limit thermostat, liquid level probe and tank heater as a assembly.

9.Remove the two hex nuts securing the tank heater to the tank lid. Remove tank heater with gaskets and discard.

10.Install new tank heater with gaskets on the tank lid and secure with two hex nuts.

11.Install tank lid with limit thermostat, liquid level probe and tank heater on the tank and secure with ten #8-32 hex nuts.

12.Connect water inlet line to the tank lid.

13.Reconnect the black wires to limit thermostat, the pink wire to the liquid level probe. Refer to the limit thermostat and the liquid level board and probe sections in this manual when reconnecting wires.

14.Refer to Fig. 30 when reconnecting the wires to the tank heater.

WHI or RED to	BLK to Limit
Terminal Block
	Thermostat

FIG. 30 TANK HEATER TERMINALS P1218

TANK HEATER SWITCH

FIG. 31 TANK HEATER SWITCH	P1199.35
Location:

The tank heater switch located inside the dis- penser on the upper right of the front panel.

34 27591 031597