SERVICE (cont.)

LEVEL CONTROL BOARD AND LEVEL PROBE (cont.)

13.Place the probe so that neither end is in contact with any metal surface of the dispenser.

14.Check the voltage across terminals 1 & 3 with a voltmeter. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models,

b)120 volts ac for three wire 120/208 volt or 120/240 volt models,

c)230 volts ac for two wire 230 volt models, after a delay of approximately 5 seconds.

15.Move the probe’s flat end to the tank. The indication must be 0.

16.Move the probe’s flat end away from the tank. The indication should again be:

a)120 volts ac for two wire 120 volt models,

b)120 volts ac for three wire 120/208 volt or 120/240 volt models,

c)230 volts ac for two wire 230 volt models, after a delay of approximately 5 seconds.

If voltage is present as described, reinstall the probe, the level control board and level probe are operating properly.

If voltage is not present as described, check the pink probe wire for continuity.

Removal and Replacement:

1.Remove all wires from the level control board.

2.Remove two #8-32 keps nuts holding level control board to right side of the component bracket.

3.Remove level control board and spacers.

4.Install the new level control board and spacers to the right side of the component bracket using two #8-32 keps nuts.

5.Refer to schematic wiring diagrams when recon- necting the wires.

TI VIO to Inlet Solenoid Coil

T2 BLK to Main Harness

T3 WHI to Main Harness

T4 PNK to Probe

P1671

FIG. 35 LEVEL BOARD TERMINALS

42

42672 122209

 

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Image 42
Bunn FMD-5, FMD-4 manual Level Board Terminals

FMD-4, FMD-5 specifications

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