SERVICE (cont.)
VACUUM SWITCHES
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| 1 |
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| REFIL | L |
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| 3 |
| MAIENR |
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| POW |
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| R |
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| ATET |
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| WINPU |
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| 1 | 1 |
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| FLUATVPOURT | OR |
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| FILNAPVUT |
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| O | 2 |
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| 2 | ER |
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| WATPUT | 3 |
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| OUT |
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| R |
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| AVOUT |
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| OFLUTP |
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3 | ER |
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WATPUT |
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| OUT |
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OR |
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FLAVPUT |
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OUT |
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ER |
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WATPUT |
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OUT |
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FIG. 26 VACUUM SWITCHES | P1521 | |||||
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Location:
The vacuum switches are located inside autofill box, mounted on the left side of the solenoid mount- ing bracket just below the needle valves.
Test Procedure:
1.Disconnect the dispenser from the power source.
2.Disconnect flavor input lines.
3.Disconnect white/red, red/black or the brown/ black wires on the vacuum switch.
4.Check for continuity across the switch leads.
If continuity is not present as described, the vacuum switch is operating properly.
If continuity is present as described, without a vacuum generated by an empty product concentrate, replace the vacuum switch.
Removal and Replacement:
1.Disconnect dispenser from the power source.
2.Removal of the two
3.Disconnect the input tubes from the vacuum switch to be replaced.
4.Disconnect the wires on the vacuum switch to be removed.
5.Remove the two
6.Using two
7.Refer to Fig. 27 and reconnect the wires.
8.Connect the input tubes to the new vacuum switch.
9.Restore the pump/motor assembly to its normal mounting position using the two
| WHI/RED from Refill ON/OFF Switch #3 |
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| WHI/RED to Circuit Board |
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| RED/BLK from Refill ON/OFF Switch #1 | |
| RED/BLK to Circuit Board |
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#3 | #1 |
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| BRN/BLK from Refill ON/OFF Switch #2 | |
| BRN/BLK to Circuit Board |
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| #2 |
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| FIG. 27 VACUUM SWITCH TERMINALS | P1527 |
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| 21 | 28791 040501 |
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