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TROUBLESHOOTING CHART
Symptom Possible Cause(s) Corrective Action(s)
Oil leakage
between the engine
and the pump
Fluctuating pressure
Pressure drops after
period of normal
use
Pump noisy / pump
runs rough
Pressure washer will
not spray detergent
Worn oil seals and/or o-ring
1. Low engine oil
2. Pump valve worn, dirty or stuck
3. Pump drawing in air
4. Tip clogged
1. Worn pump water seals
2. Spray tip worn
3. Pump valve worn, dirty or stuck
4. Unloader valve seat worn or dirty
5. If using high pressure soap lance
accessory; nozzle in low PSI position
1. Pump drawing in air/low water
supply
2. Valves dirty or worn
3. Worn bearings
4. Water too hot
1. Not using quick connect detergent
tip
2. Clog, kink, or hole in detergent
suction hose
3. High pressure hose length too long
4. Detergent injector clogged
Replace oil seals and/or o-ring. See service
center
1. Add oil.
2. Check and replace
3. Ensure hoses and fittings are tight.
Purge air from garden hose
4. Check or replace
1. Check and replace
2. Check and replace
3. Check, clean or replace
4. Check, clean or replace
5. Pull back nozzle to high pressure
position
1. Ensure fittings are tight. Increase water
pressure
2. Check, clean or replace
3. Check and replace
4. Reduce temperature below 100°F / 38°C
1. Use black quick connect detergent tip
2. If clean, unkink or replace hose
3. Use only hose length provided with
initial purchase of pressure washer.
Detergent suction will not function if
more than once section of hose is
attached to unit
4. Remove 1” (2,54 cm) tapered detergent
barb from pump. Clean the barb, and
make sure that ball and spring are
properly aligned with tapered portion
of the spring facing the ball. The ball
should be on top of the spring