SERVICE (cont.)
BREW/DILUTION TIMER (TB3 & TB6)
FIG. 18-1 BREW/DILUTION TIMER
Location:
The timer is located in left side of the hood.
Test Procedure:
NOTE: Do not remove or install wires while timer board is installed. Pressure applied to one side may cause damage to the board.
1.Disconnect the brewer from the power source and remove the top cover.
2.With a voltmeter, check the supply voltage across terminals TL1 and TL2. Connect the brewer to the power source. Turn on the "ON/OFF" switch. The voltage must be:
a)120 volts ac for two wire 120 volt models.
b)200 to 230 volts ac on two wire 200 volt or 230 volt models.
3.Disconnect the brewer from the power source.
If voltage is present as described, proceed to #4.
If voltage is not present as described, refer to the Wir- ing Diagrams and check the wiring harness.
4.With a voltmeter, check the BREW output voltage across terminals TL2 and TL4; and the DILUTION output voltage across terminals TL2 and TL6. Connect the brewer to the power source, turn on the "ON/OFF" switch and press the "START" switch. The voltage must be:
a)120 volts ac for two wire 120 volt models.
b)200 to 230 volts ac for two wire 200 volt or 230 volt models.
If voltage is present as described, the timer is operat- ing properly.
If voltage is not present as described, disconnect the brewer from the power source and replace the timer.
Removal and Replacement:
1.Remove the two
2.Disconnect all wires from the timer.
3.Refer to schematic and reconnect wires.
4.Install new timer to bracket with the two
5.Adjust the timer as required.
SW1 |
FIG. |
Terminals:
L1 in from ON/OFF switch | ||
Neutral (L2) | ||
White/Orange | Start switch | |
White/Green | Brew solenoid | |
White/Yellow | Start switch | |
White/Blue | Dilution solenoids | |
Page 18 | 41722 070209 |
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