SERVICE (cont.)
TANK HEATER SWITCH (VP17B and early model VP17)
VP17 MODELS (Early Models) | P1161.40 |
VP17B MODELS | P1319.40 |
FIG. 10 TANK HEATER SWITCH |
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Location:
On Early VP17 Models the tank heater switch is located on the rear of the brewer on the upper left side of the trunk.
On VP17B Models the tank heater switch is located on left side of the control panel.
Test Procedure:
1.Disconnect the brewer from the power source.
2.Disconnect the black wire from the limit thermo- stat.
3.With a voltmeter, and with the tank heater switch in the "ON" (upper) position check the voltage between the black wire removed from the limit thermostat and the white wire on the tank heater. Connect the brewer to the power source. The indication must be:
a)100 volts ac on two wire 100 volt models.
b)120 volts ac on two wire 120 volt models.
4.Disconnect the brewer from the power source.
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring harness.
5.Check for continuity between the black wire re- moved from the limit thermostat and the black insert on the terminal block, with the tank heater switch in the "ON" (upper) position. Continuity should not be present in the "OFF" (lower) position.
If continuity is present as described, the tank heater switch is operating properly.
If continuity is not present as described, replace the tank heater switch.
Removal and Replacement: (VP17)
1.Remove the tank inlet fitting securing fill basin to the tank lid. Remove fill basin and gasket. Set all three parts aside for reassembly.
2.Remove sprayhead and hex nut securing sprayhead tube to the hood. Set aside for reassembly.
3.Disconnect the wires on the limit thermostat and the tank heater.
4.Gently pull the thermostat sensor and grommet from the tank lid.
5.Insert a tube to the bottom of the tank and syphon ALL of the water out.
6.Gently reinstall the thermostat sensor and grom- met in the tank lid.
7.Remove the two
8.Lift tank and components out as an assembly and set aside for reassembly.
9.Disconnect the two black wires from the tank heater switch.
10.Remove the plastic facenut, hex facenut and the switch indicator/guard bracket that secures tank heater switch to the brewer. Remove switch and discard.
11.Insert new tank heater switch through the hole in the upper left rear of the trunk and secure with switch indicator/guard bracket, hex facenut and plastic facenut.
12.Reconnect the two black wires the tank heater switch terminals.
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