SERVICE
This section provides procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.
WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel. The brewer should be unplugged when servicing, except when electrical tests are re- quired and the test procedure specifically states to
COMPONENT ACCESS
WARNING - Disconnect the brewer from the power source before the removal of any panel or the replace- ment of any component.
All components are accessible by the removal of the top cover, front inspection panel, and rear panel.
FIG. |
CONTROL THERMOSTAT
FIG. 10-2 CONTROL THERMOSTAT
Location:
The control thermostat is located in the hood.
Test Procedures:
1.Disconnect the brewer from the power source.
2.Locate the blue wire on the control thermostat.
3.Check the voltage across the blue/black wire on the control thermostat and the white wire on the tank heater on 120V models or red wire on the tank heater on two wire 200V or 230V models with a voltmeter. Connect the brewer to the power source. The indication must be:
a)120 volts ac for two wire 120 volt models.
b)200 to 230 volts ac for two wire 200 or 230 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.Locate the black wire on the control thermostat.
6.Gently remove the capillary bulb and grommet from the tank.
7.Check the voltage across the black wire of the control thermostat and the white wire on the tank heater on 120V models or red wire on the tank heater on two wire 200V or 230V models with a voltmeter when the control thermostat is turned fully clockwise. Connect the brewer to the power
(CONTINUED)
Page 10 | 41722 070209 |
|