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16 820-133
Troubleshooting
WARNING
To
reduce the
risk of injury
, including fluid injection, al
-
ways follow the Pressure Relief Procedure Warn-
ing
on page 1
1 before checking or repairing any part
of
the spray system.
NOTE: Repairs, other than those for which instructions
are
given
on page 18, 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 11). Then if the
sprayer won’t start, use the Troubleshooting 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 13 and 14 will help prevent down time and
costly
repair bills.
PROBLEM CAUSE SOLUTION
Poor spray pattern
Spray tip worn Change tip
Paint too thick
Thin, try larger tip
Spray gun won’t shut of
f W
orn ball
Repair gun; order kit no. 218–588
W
orn dif
fuser
Replace gun
Paint build-up between needle and
diffuser
Disassemble
and clean gun
Spray gun leaks
W
orn 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
Paint 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 of
f T
urn 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