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Page 4-7
Area
Problem
Possible Cause
Solution
High Pressure
System (cont.)
No water from
pump or low
pressure (cont.)
Pressure hose damaged
Repair or replace
Quick disconnect leaking
Tighten or replace
Injector clogged
Remove chemical line from chemical
cap and blow small amounts of com-
pressed air into line.
Pulse hose damaged
Repair or replace
Unloader failed (500 psi only)
Replace
Hose kinked
Unkink and check for damage
Seals in pump need replaced
Remove pump and replace seals
Sputtering or
pulsing from
pump motor in
high pressure
setting
Not fully primed
Power Prime Technique previously
stated
Wrong spray gun
Replace with correct spray gun
Partially clogged orifice
Remove orifice with Allen wrench and
clean
Bad fan pattern
or pinpoint pat-
tern on spray
gun
Debris in nozzle
Remove orifice with Allen wrench and
clean
Orifice damaged
Remove and replace
No chemical
flow
Out of chemical
Refill chemical
Chemical In-
jection System
Chemical cap not secure
Check chemical cap and tighten
Chemical valve in OFF position
Turn valve ON
Chemical cap clogged
Replace chemical cap
Spray gun in wrong pressure mode
Make sure spray gun is in low pres-
sure mode
Metering tip clogged
Remove tip and clean
Injector clogged
Remove chemical line from injector
and use a straightened paper clip to
clear the injector of debris
Air entering chemical system
Check for air entering system around
chemical lines or injector
Injector installed backwards
Check Injector position with Pump
Box Diagrams
4.5 Troubleshooting
4.0 OMNIFLEX PUMP SYSTEM
