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SERVICE (cont.)
HOPPER DRIVE BOARD - FMD-1 ONLY
FIG. 27 HOPPER DRIVE BOARD
Location
The hopper drive board is located inside the dispenser
mounted on the auger motor mounting bracket.
Test Procedures:
1. Disconnect the dispenser from the power source.
2. Disconnect the white/red wire and the white wire
from the hopper speed control board.
3. Check the voltage across the white/red wire and
the white wire with a voltmeter. With the rinse/
run switch in the run (lower) position, connect the
dispenser to the power supply. 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.
4. Disconnect the dispenser from the power supply.
P1665
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the wiring
diagram and check the dispenser wiring harness.
5. Check the voltage across the positive (red wire)
terminal and the negative (black wire) terminal on
the auger motor with a voltmeter. With the rinse/
run switch in the run (lower) position press and
hold the dispense switch. Connect the dispenser
to the power supply. After a .6 second delay the
indication must be 4.0 to 24.5 volts dc.
If voltage is present as described,the auger motor drive
is operating properly. If auger does not turn replace
the auger motor.
If voltage is not present as described, replace the hop-
per drive board.
J1
42672 122209