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RVV Gen II KO Service and Parts Manual
SECTION 5: Troubleshooting
B. Ensure that the elevator arm is parallel with the bottom of the main door.
(Refer to Figure 5.30.)
C. Remove the product cup floor, and check the wiring from the Hall Effect sensor to position P4 on the cup logic
board.
(Refer to Figure 5.31.)
D. Using a voltmeter, check for 5 VDC on pins 1 and 2 (black and green wires) at pinout P4 on the cup logic board.
(Refer to Figure 5.31.)
If
no
voltage is found, replace the logic board.
E. Using an ohmmeter, check for continuity on all wires in the harnessing from pinout P3 on the DMC board to the
cup logic board. If
any
wire fails, replace the harness. If
all
wires pass, replace the cup logic board. If the problem
persists, replace the Hall Effect sensor.
FIGURE 5.30.
Elevator arm
If the elevator arm is not parallel with the
bottom of the door, hold the higher side
steady and pull up on the lower side until it
is level.
Elevator arm (darker lines)
FIGURE 5.31.
Locations of position P4 and the Hall Effect sensor
Position P4 on cup logic board
Hall Effect sensor
