Troubleshooting
3A4147B
35
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 27).
No light
Once
Normal Operation
Light on
Continously
Control board
commanding
motor to run
Flashing
See Code section
for further
troubleshooting
See step 1. Do
you have over
100 VAC (220
VAC for 230V
units)?
NO
See step 2. Do
you have over
100 VAC (220
VAC for 230V
units)?
NO
Repair or
replace power
cord
YES
See step 3. Is
the proper
reading present
through the
thermal switch
wires?
YES
NO
YES
Replace the
ON/OFF switch
If motor is hot, let cool and retest. If
Step 3 still shows incorrect
resistance, replace motor. The motor
has a defective thermal device.
See step 4. Does
the motor run?
YES
Replace
potentiometer.
NO
Connect a test
transducer to the
board. Does the
motor run?
NO
Replace the
control board.
YES
Replace the
transducer.
ti29440a
