SERVICE (cont.)

SOLENOID VALVE (INLET) (all Models)

FMD DBC-3 shown

FIG. 48 INLET SOLENOID VALVE

P4102.40

 

Location:

 

The inlet solenoid is located inside on the rear of the dispenser base.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the two wires from the solenoid valve.

3.Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the two wires to the solenoid.

If continuity is not present as described, replace the solenoid valve.

4.Check the solenoid valve for coil action. Connect the dispenser to the power source. Listen carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts.

5.Disconnect the dispenser from the power source.

If the sound is heard as described and water will not pass through the solenoid valve, there may be a block- age in the water line before the solenoid valve or, the solenoid valve may require inspection for wear, and removal of waterborne particles.

If the sound is not heard as described, replace the solenoid valve.

Removal and Replacement:

1.Remove the two wires from the solenoid valve.

2.Turn off the water supply to the dispenser.

3.Disconnect the water lines to and from the solenoid valve.

4.Remove the two #8-32 screws securing the sole- noid to the dispenser base. Remove solenoid.

5.Install new solenoid valve on the dispenser base and secure with the two #8-32 screws.

6.Securely fasten the water lines to and from the solenoid valve.

7.Refer to Schematic Wiring Diagrams when recon- necting the wires.

Early Models

120V 1.2 kΩ

230V 3.84 kΩ

Late Models

120V 622 Ω

230V 1555 Ω

P1217

FIG. 49 INLET SOLENOID VALVE TERMINALS

49

42672 122209

 

Page 49
Image 49
Bunn FMD-4, FMD-5 manual Solenoid Valve Inlet all Models, Inlet Solenoid Valve

FMD-4, FMD-5 specifications

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