SERVICE (cont.)
TIMER (Early Models)(cont.)
5.With a voltmeter, check the voltage across the sockets P1 and P2 (blue and white wires) of the female connector on the main harness when the "ON/OFF" switch is in the "ON" (upper) position and the start switch pressed. Connect the brewer to the power source. The indication must be:
a)120 volts ac for three wire 120/208 volt, 120/240 volt, 380 volt models and 208 or 240 volt ac for four wire 440 volt models.
b)208 volts ac for two and three wire 208 volt models.
c)240 volts ac for two and three wire 240 volt models.
d)230 volts ac for two wire 230 volt CE models.
6.Disconnect the brewer from the power source.
7.Reconnect the three pin connector from the main wiring harness to the connector on the timer.
If voltage is present as described, proceed to #8.
If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring harness.
8.Disconnect the black and white wires to the pump.
9.With a voltmeter, check the voltage across the black and white wires when the "ON/OFF" switch is in the "ON" (upper) position and the start switch pressed to the start position and released. Connect the brewer to the power source. The indication must be:
a)120 volts ac for three wire 120/208 volt, 120/240 volt, 380 volt and 208 or 240 volt ac for four wire 440 volt models.
b)208 volts ac for two and three wire 208 volt models.
c)240 volts ac for two and three wire 240 volt models.
d)230 volts ac for two wire 230 volt CE models.
If voltage is present as described, the brew timer is operating properly. Reset the timer dial as required, to obtain the desired brew volume.
If voltage is not present as described, replace the timer.
Removal and Replacement:
1.Separate all connectors between the brewer wiring harness and the timer.
2.Disconnect the timer leads from the pump leads.
3.Remove the two
4.Install new timer circuit board as described in Late Model Timer section on the following pages.
5.Refer to Fig. 33 to reconnect the wires.
6.Install the Timer Setting Decal, provided with the timer replacement kit, on the back of the front access panel.
7.Adjust the timer as required. Refer to Late Model Timer section on the following pages.
Three Pin Connector from |
|
Half/Full Batch Switch |
|
To Three Pin Female | |
Connector on Main |
|
Harness |
|
BLK to Pump |
|
Lead |
|
WHI to Pump Lead | |
OLD STYLE |
|
FIG. 31 TIMER TERMINALS | P1751 |
| |
Page 32 | 10060 | 080900 |
|
