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Troubleshooting Chart - Gasoline Powered Pressure Washers Only
Symptom
Engine will not start
1.
or is hard to start
2.
3.
4.
5.
6.
7.
8.
Engine misses or
1.
lacks power
2.
3.
Low pressure and/or
1.
pump runs rough
2.
3.
4.
5.
6.
7.
8.
9.
10. Inlet water temperature too high
Water leakage from
Worn water seals
under pump
manifold
Water in pump
1.
crankcase (milky oil)
2.
3.
Frequent or
1.
premature failure of
2.
the pump water
seals
3.
4.
5.
6.
7.
Strong surging at
Foreign particles in the inlet or
the inlet and low
discharge valve or worn inlet and/or
pressure
discharge valves
20 — English
TROUBLESHOOTING CHART
Possible Cause(s)
No gasoline in fuel tank or
carburetor
Low oil
Start/Stop switch in stop position
Water in gasoline or old fuel
Dirty air cleaner filter
Spark plug dirty, wrong gap or
wrong type
Spray gun closed
Other causes
Partially plugged air cleaner filter
Spark plug dirty, wrong gap or
wrong type
Bad Fuel
Worn or wrong size tip
Inlet filter on pump clogged
Worn water seals, abrasives in
water, or natural wear
Fouled or dirty inlet or discharge
valves
Restricted inlet
Worn inlet or discharge valves
Leaking high pressure hose
Pump drawing in air
Unloader valve seat faulty or worn
Humid air condensing inside
crankcase
Oil seals leaking
Water seals leaking
Scored damaged or worn plungers
Abrasive material in the fluid
Inlet water temperature too high
Overpressurizing pump
Excessive pressure due to partially
plugged or damaged tip
Pump running too long without
spraying
Pump running dry
Corrective Action(s)
1.
Fill the tank with gasoline,open fuel
shut off valve. Check fuel line and
carburetor
2.
Check oil level. Fill if necessary
3.
Move switch to start position
4.
Drain fuel tank and carburetor. Use new
fuel and dry spark plug
5.
Remove and clean or replace
6.
Clean, adjust the gap, or replace
7.
Trigger spray gun
8.
See engine owner's manual
1.
Remove and clean or replace
2.
Clean, adjust the gap, or replace
3.
Drain fuel and carburetor. Use new
fuel.
1.
Replace with tip of proper size
2.
Clean. Check more frequently
3.
Check filter. Replace water seals. See
service center
4.
Clean inlet and discharge valve
assemblies. Check filter
5.
Check garden hose, may be collapsed or
kinked. Check inlet water flow
6.
Replace worn valves
7.
Replace high pressure hose
8.
Ensure hoses and fittings are tight
9.
Check and replace
10. Check water temperature; may not
exceed 100° F / 38° C
Install new water seals. See service center
1.
Change oil as specified in maintenance
schedule
2.
Install new oil seals. See service center
3.
Install new water seals. See service
center
1.
Install new plungers. See service center
2.
Install proper filtration on pump inlet
plumbing
3.
Check water temperature; may not
exceed 100° F / 38° C
4.
DO NOT modify any factory set
adjustments
5.
Clean or replace tip
6.
NEVER run pump more than 2 minutes
without spraying
7.
DO NOT run pump without water
Clean or replace valves. See service center
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