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Control Board Replacement
20 311911C
Control Board Replacement
See Wiring Diagram, page 36.
FinishPro 390
Removal
1. Relieve pressure, page 7. Disconnect power cord
from outlet.
2. Remove two screws (30) and shroud (29) (see illus-
tration, page16).
3. Disconnect pressure switch connector (A) from con-
trol board (33).
4. Disconnect motor connector (B) from control board
(33).
5. Remove three screws (30) securing control board to
housing (two are located on the front and one on the
back next to the power cord).
6. Pull control board out slightly and then slide it back
and off of frame.
7. Remove grommet and wires from strain relief.
.
8. Remove two power cord connectors (C) from control
board.
120V
240V
ti6143b
33
33
A
B
B
A
30
33
ti9258a
Make sure power cord is free and not wrapped
around cord wrap.
Ground wire will remain attached to sprayer with
grounding screw.
ti6122a
33
Grommet
Strain
Relief
120V
240V
ti6143b
33
33
C
C