SERVICE (cont.)
TANK HEATER - FMD-1 (shown) & FMD-2 (cont.)
NOTE - If the tank heater remains unable to heat, remove and inspect heater for cracks in the sheath.
Removal and Replacement:
1.Disconnect the dispenser from the power source.
2.Disconnect the water supply tube on the tank lid.
3.Disconnect the black wires on the limit thermstat.
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 and the green wire from the tank.
6.Remove the thermostat capillary bulb by firmly
7.Remove the ten
8.Remove tank lid with limit thermostat, liquid level probe and tank heater as an 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
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 and the green wire to the tank. Refer to the limit thermostat and the liquid level board and probe sections in this manual when reconnecting wires.
14.Refer to Fig. 41 when reconnecting the wires to the tank heater.
WHI or RED to | BLK to Limit |
Main Harness | Thermostat |
FIG. 41 TANK HEATER TERMINALS | P1218 |
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TANK HEATER SWITCH - FMD-1 (shown) & FMD-2
P1665 |
FIG. 42 TANK HEATER SWITCH |
Location: |
The tank heater switch located inside the dis- penser on the upper right of the front panel.
Test Procedure:
1.Disconnect the dispenser from the power source.
2.Disconnect the black wires from the main wiring harness.
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 tank 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. 43.
5.Push new switch through hole in the front panel and secure with facenut.
38 | 29112 101598 |
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