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Operating Instructions & Parts Manual
Symptom Possible Cause(s) Corrective Action
Sprayer motor doesn’t
start or just hums
Motor overheats and/or
cuts off
Oil leaks or oil in paint
Leaking paint from
sprayer
Unit primes and builds
pressure but will not
spray
1. Turn control to prime position
and pull gun trigger.
2. Turn unit off. Turn lever to
ON/OFF position then unplug
cord and allow unit to cool for
20-30 minutes.
3. Plug unit directly into an outlet
and extend hose length.
4. Replace fuse, reset circuit
breaker or use 20 amp circuit
breaker.
1. Get correct gauge size or plug
directly into outlet and use
additional spray hose.
2. Take to Service Center.
3. Thin, mix and strain all materi-
als.
4. Move unit to an area with
good air circulation.
5. Check receptacles for too much
voltage/amperage.
1. Tighten block bolts in an X pat-
tern. If oil is still leaking,
remove block and change
diaphragm. Be sure to use cor-
rect replacement part; call
1-800-626-4401.
2. a. Replace unit.
b. Contact Service Center to
have motor housing
replaced.
3. Contact Service Center to have
hydraulic housing and
diaphragm replaced.
1. Tighten block bolts in an X pat-
tern or replace block.
2. Tighten clamp.
3. Remove and replace outlet
valve.
4. a. Tighten hose on outlet valve.
b. Check for damaged thread
on connector. Replace if nec-
essary.
1. Turn spray tip to clean position,
squeeze trigger, then turn back
to spray position.
2. Replace gun filter, be sure filter
housing is clear of debris.
Troubleshooting Chart (Cont.)
1. Paint system is under pressure or
control is in spray or roll posi-
tion.
2. Motor thermal overload switch is
tripped.
3. Use of extension cord that is too
long or too small in gauge.
4. Blown fuse or tripped circuit
breaker.
1. Extension cord is too long or
gauge is too small.
2. Paint overspray is being drawn
into motor causing it to over-
heat.
3. Material is too thick for paint
sprayer to prime.
4. Sprayer is being used in an area
of poor air circulation.
5. Tripped circuit breaker.
1.
*Leaking oil between block and
hydraulic housing.
2.
*Oil leaking from motor; defec-
tive motor seal.
3.
*Deep scratch in grooves by
diaphragm.
1.
*Leaking paint between block
and hydraulic housing.
2. Leaking paint from suction hose
connection.
3. Leaking paint around outlet
valve assembly; o-ring on outlet
valve is damaged.
4. Leaking paint from hose/outlet
valve connection.
1. Clogged spray tip.
2. Clogged gun filter.
* = Service Center Recommended
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