10
PROBLEM
POSSIBLE CAUSE
SOLUTION
Pump motor runs but no spray
through jets.
1. Clogged or faulty solution
filter.
2. Clogged or faulty quick
disconnect on housing.
3. Punctured pump diaphragm.
4. Clogged jets
1. Check filter and remove lint
or other foreign material.
2. Depress plunger on solution
hose against inside wall of
solution tank. If solution is
flowing at this point, the
system is OK If no solution
flows, check the quick
disconnect for lint and other
foreign matter.
3. Replace with diaphragm
repair kit.
4. Clean jets on wand or tool.
Uneven spray from jet. Spray
weak or uneven.
1. Clogged strainer in solution
tank.
2. Clogged jet.
1. Unscrew strainer and
remove lint and any other
foreign material from screen.
2. Remove and clean.
Leaking or stuck solution
valve.
1. Foreign material in valve.
2. Loose brass hex nut.
3. Valve or seals worn
1. Remove brass hex plug,
clean valve and replace.
2. Reseal hex and plug.
3. Replace worn parts with
solution valve repair kit.
Pump motor not working.
1. Loose wiring
2. Defective pump pressure
switch.
3. Motor burnout
1. Tighten wiring
2. Replace with new pressure
switch assembly.
3. Replace pump motor
Pump pressure low
1. Clogged screens on strainer
in solution tank.
2. Punctured pump diaphragm.
1. Unscrew strainer remove lint
and any other foreign material
from screen.
2. Replace with diaphragm
repair kit.
Pump pressure varies.
1. Defective pump pressure
control switch.
1. Replace.
PUMP SYSTEM
