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SERVICE (CONT.)

Relay (all Models)

FIG. 57 RELAY

Location:

The relay (or contactor) is located inside the dispenser chassis on the lower outside of the component bracket.

Test Procedures:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, check the voltage across the white wire and the white/black wire. Connect the dispenser to the power source. The indication must be: a) 120 volts ac for 120 volt models.

b) 230 volts ac for 230 volt models.

3. Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #4.

If voltage is not present as described, refer to the Wiring Diagram and check the dispenser wiring harness.

If harness has continuity, replace Control Board.

4. Disconnect the blue/black wire and the red/black wires from relay terminals #4 and #6.

5. Connect the dispenser to the power source.

6. Turn on power and check for continuity across terminals on relay.

If continuity is present as described, disconnect the dispenser from power source and reconnect wires to terminals #4 and #6, the relay is working.

If continuity is not present as described, do the same continuity test across terminals #2 and #8. If continuity is present between terminals #2 and #8, reconnect wires to terminals #4 and #6 instead of #2 and #8.

If continuity is not present as described, replace the relay.

Removal and Replacement:

1. Disconnect the wires from the relay.

2. Remove the two #8-32 locking screws securing the relay and mounting bracket to the chassis. Remove and discard relay.

3. Install the new relay to the mounting bracket and then on the chassis using two #8-32 locking screws.

4. Refer to Fig. 58 to reconnect the wires.

Terminal #0

WHI from

Main Harness

Terminal #2

Terminal #4

Terminal #1

BLK from

Main Harness

Terminal #8

BLK from

Main Harness

Terminal #6

WHI/ORN from

Main Harness

FIG. 58 RELAY TERMINALS

44 49179 110613