Control Board Replacement
312361D
19
Control Board Replacement
See Wiring Diagram, page 27.
Removal
1.
Relieve Pressure, page 7. Disconnect power cord
from outlet.
2.
Hi-Boy Models Only - Disconnect high-pressure
hose at pump outlet (see page 13).
3.
Remove two screws (4) and shroud (12).
4.
Disconnect pressure control assembly connector
(A) from control board (18) (see page 15).
5.
Disconnect motor connector (B) from control board
(18).
6.
Remove three screws (11) securing control board to
housing (two are located on the front and one on the
back next to the power cord).
7.
Pull control board out slightly and then slide it back
and off of frame.
8.
Remove grommet and wires from strain relief.
.
9.
Remove two power cord (C) connectors from control
board.
ti6143a
240V
120V
18
18
A
B
B
A
18
ti6119b
11
Make sure power cord is free and NOT wrapped
around cord wrap.
Ground wire remains attached to sprayer with
grounding screw.
ti6122a
18
Grommet
Strain
Relief
ti6143a
240V
120V
18
18
C
C