Troubleshooting
311365H
19
Sprayer Will Not Run
(See following page for steps)
Remove control box cover. Turn
sprayer ON. Observe control
board status light on control
board (see page 13).
No light
Once
Normal operation
Light on
Continuously
Control board
commanding
motor to run
Flashing
See Error Code
section for further
troubleshooting
Connect a test
transducer to the
board. Does the
motor run?
Replace
potentiometer.
Pressure switch.
See Step 3. Is the
proper reading pres-
ent through the ther-
mal switch wires?.
Replace the
ON/OFF switch.
See step 4. Does
the motor run?
See Step 1. Do
you have over
100 AC volts?
See Step 2. Do
you have over
100 AC volts?
Repair or
replace
power cord.
If motor is hot, let cool and re-
test. If Step 4 still shows incor-
rect resistance, replace motor.
The motor has a defective
thermal device.
Replace the
transducer
Replace the
control board.
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
