SERVICE (cont.)
CONTACTOR |
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FIG. 4 CONTACTOR | P2209.60 |
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Location:
The contactor is located on the left front of the component bracket
Test Procedures:
1.Disconnect the brewer from the power source.
2A. 120/208V, 120/240V, 380V THREE WIRE MODELS,
380V and 440V FOUR WIRE MODELS Disconnect the black wire from the contactor coil to the limit thermostat and black wire from the white wire on the main harness.
2B. 208V or 240V TWO WIRE MODELS (Prior to
#U300004095), 208V and 240V THREE WIRE MODELS
Disconnect the black wire from the contactor coil to the limit thermostat and black wire from the red wire on the main harness.
2C. 230V MODELS (S/N U300004095 - UP) Disconnect the red wire from contactor coil to the limit thermostat and the black wire from the main harness.
3.Connect the brewer to the power source.
4.Check the voltage across the coil wire and the wire from the the main harness.The indication must be:
a)120 volts ac for three wire 120/208, 120/240 volt and 380 volt models.
b)230 volts ac for two wire 230 volt models.
c)208 or 240 volts ac for two wire 208 or 240 volt models.
d)220 or 254 volts ac for four wire 280 or 440 volt models.
5. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #6.
If voltage is not present as described refer to the Wiring Diagrams and check the brewer wiring harness.
6.Check for continuity between the black leads on the contactor coil or the left and right terminals on the contactor coil on 230V models.
If continuity is present as described, reconnect the wires and proceed to #7.
If continuity is not present as described, replace the contactor.
7.On all brewers, with a voltmeter, check the voltage across the upper left terminal and the upper right terminal on the contactor. Connect the brewer to the power source. The indication must be:
a)120 volts ac for three wire 120/208, 120/240 volt and 380 volt models.
b)230 volts ac for two wire 230 volt models.
c)208 or 240 volts ac for two wire 208 or 240 volt models.
d)220 or 254 volts ac for four wire 280 or 440 volt models.
8.Disconnect the brewer from the power source.
If voltage is present as described, proceed to #9.
If voltage is not present as described, refer to theWiring Diagrams and check the brewer wiring harness.
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