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SERVICE (cont.)
CONTROL THERMOSTAT
FIG. 6 CONTROL THERMOSTAT
Location
The control thermostat (mechanical or elec-
tronic) is located inside the dispenser on the upper
left side of the housing.
Test Procedure
Mechanical Thermostat
1. Disconnect the dispenser from the power source.
2. Disconnect the black wire of the control thermo-
stat from the black lead from the limit thermo-
stat.
3. Remove bulb from the tank.
4. Check the voltage across black wire on the con-
trol thermostat and the white or red wire on the
tank heater with the tank heater switch in the “ON”
lower position with a voltmeter. Connect the dis-
penser to the power source. The indication must
be:
a) 120 volts ac for two wire 120 volt models.
b) 208 volts ac for three wire 120/208 volt or 240
volts ac for 120/240 volt models.
c) 240 volts ac for two wire 240 volt models.
5. Disconnect the dispenser from the power source.