26
Troubleshooting
Problem
Cause
Solution
Sprayer runs, but pump does
not prime or looses prime while in
use.
(Pump cycles but does not
pump paint or build pressure.)
Inlet valve check ball is stuck.
Press PushPrime button to
dislodge the ball allowing pump
to prime properly.
Prime/Spray valve is in SPRAY
position.
Turn Prime/Spray valve down to
PRIMEpositionuntilpaintexits
drain tube.Thepump isnow
primed.
Pump was not primed with
flushing fluid.
(Thickfluidsmaynotprimeifnot
initiallyprimedwithflushingfluid.)
Remove suction tube from paint.
Prime pump with oil or water-
based flushing fluid.
Debris in paint.
Strain the paint.
Thick or “sticky” paint.
Somefluidsmayprimefasterifthe
ON/OFFswitchismomentarily
turned offso thepump can slow
and stop. Turn ON/OFF switch on
and off severaltimesifnecessary.
Inlet strainer is clogged or
suction tube is not immersed in
paint.
Cleandebrisoffinletstrainerand
makesuresuction tubeis
immersed inpaint.
Inlet valve check ball or seat is dirty. Removeinletfitting.Cleanor
replace ballandseat.
Suction tube is leaking.
Inspect suction tube connection
for cracks or vacuum leaks.
Outlet valve check ball is stuck.
Unscrew outlet valve, remove, and
clean assembly.
Prime/Spray valve is worn
or obstructed with debris.
Take sprayer to DINO-POWER
authorized service center.