SERVICE (cont.)
DILUTION TIMER
FIG. 11 DILUTION TIMER | P2207.40 |
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Location:
The dilution timer is located inside the hood on the right side. It consists of the dial plate with two dials and circuit board.
Test Procedure:
1. | Disconnect the brewer from the power source and |
| remove the wires from terminals TL3, TL4, & TL5 |
| of the timer and rotate both dials fully counter- |
| clockwise. |
2. | With a voltmeter, check the voltage across termi- |
| nals TL1 and TL2 when the ON/OFF switch is in |
| the "ON" position. Connect the brewer to the power |
| source. The indication must be: |
| a) 120 volts ac for two wire 120 volt models. |
If continuity is present as described, reconnect the wires to terminals TL3, TL4, & TL5 of the timer board and proceed to #5.
If continuity is not present as described, refer to the Wiring Diagrams and check the wiring harness.
5.With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the ON/OFF or selector switch is in the "ON" (T3 left, T6 left or right) po- sition and the start switch is momentarily placed in the lower position. Connect the brewer to the power source. After a delay of approximately three minutes, the indication must be:
a)120 volts ac for two wire 120 volt models for approximately one minute and then return to its previous indication.
b)240 volts ac for two wire 240 volt models for approximately one minute and then return to its previous indication.
c)100 volts ac for two wire 100 volt models for approximately one minute and then return to its previous indication.
6.Disconnect the brewer from the power source.
If voltage is present as described, the timer is operat- ing properly. Adjust the timer dials as required.
If voltage is not present as described, replace the timer.
Removal and Replacement:
1.Remove all wires from the timer.
2.Remove the circuit board and dial plate from the brackets.
4.Install the new dial plate and circuit board to the brackets.
5.Refer to Fig. 12 when reconnecting the wires.
6.Adjust the timer dials as required.
b) 240 volts ac for two wire 240 volt models. |
c) 100 volts ac for two wire 100 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.Check for continuity across the green and red/ black wires when the start switch is held in the lower position.
WHI/BLU to Dilution Solenoid
RED/BLK to Start Switch
WHI to Brew Timer (100V & 120V Models)
RED to Brew Timer (240V Models)
WHI/VIO to ON/OFF Switch
GRY to Selector Switch (Half Batch Option Only)
PNK to Selector Switch (Half Batch Option Only)
GRN to Start Switch
PNK to Selector Switch (Half Batch Option Only) GRY to Selector Switch (Half Batch Option Only)
FIG. 12 DILUTION TIMER TERMINALS | P1281 |
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Page 22 | 10145 | 072600 |
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