Troubleshooting
WARNING
To reduce the risk of serious injury, including fluid in-
jection, always follow the
Pressure Relief Proce-
dure Warning
on page 2 before checking or repair-
ing any part of the spray system.
NOTE:
Repairs, other than those for which instructions
are given on page 10, should be performed by a trained
and qualified repair agency.
NOTE:
If your sprayer is not operating well, or will not op-
erate at all, check for obvious problems first. Follow the
Startup
procedure exactly (see page 5). Then if the
sprayer won’t start, use the T roubleshooting Chart for
help in identifying the possible cause.
NOTE:
Remember, taking the time after each use of the
sprayer to perform all of the maintenance procedures
given on page 6 and 7 will help prevent down time and
costly repair bills.
PROBLEM
CAUSE
SOLUTION
“Fogging” spray pattern
Too much pressure.
Turn the pressure down.
Spray gun won’t shut off
Worn ball
Repair gun; order kit no. 218–588.
Worn diffuser
Replace gun.
Fluid build-up between needle and
diffuser
Disassemble and clean gun.
Spray gun leaks
Worn seal or loose fluid fitting
Repair gun; order Kit no. 218–588;
tighten fluid fitting.
Spray gun won’t spray, or low
output from gun
Fluid supply empty
Refill and reprime system.
Spray tip clogged
Use Reverse-A-Clean feature to
clear tip clog; see page 12.
Gun filter, if used, is clogged
Clean or replace.
Sprayer will not start
Sprayer not plugged in
Plug in.
ON/OFF switch turned off
Turn switch on.
Sprayer left pressurized when shut
off
Relieve pressure first, then start.
Motor overheated
Shut off, relieve pressure, allow to
cool.
NOTE:
Sprayer restarts automati-
cally when cool if it is left on.
Blown building fuse or circuit
breaker tripped
Replace or reset.
No voltage or low voltage in
electrical outlet
Test the outlet or try plugging spray-
er into another outlet.
Damaged power supply cord or
extension cord, or wrong type of
extension cord
Return for repair; use only 3 wire, 16
gauge (minimum) extension cord
with a 3 prong plug and a maximum
length of 30 m (100 foot).
Starter switch (18a) damaged
Replace; see page 18.
Motor worn or damaged
Return for repair.
Motor runs but sprayer won’t run
Air in diaphragm housing
Bleed air.
