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Pressure Washers
17
Troubleshooting Chart - Gasoline Powered Pressure Washers Only (Continued)
Symptom Possible Cause(s) Corrective Action(s)
Pressure drops after period
of normal use
Pump noisy / pump runs
rough
Pressure washer will not
spray detergent
1. Worn pump water seals
2. Nozzle worn
3. Valve worn, dirty or stuck
4. Unloader valve seat worn or dirty
5. 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. Nozzle not pushed up far enough
2. Clog, kink, or hole in detergent suction hose
3. Hose length too long
4. Lance not functioning properly
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
o
F
1. Push nozzle forward as far as it will go.
2. If clean, unkink or replace hose.
3. Use only hose length provided with initial pur-
chase of pressure washer. Detergent suction will
not function if more than once section of hose is
attached to unit.
4. Remove lance from gun. If detergent is dispensed
through gun, the lance must be replaced. If not
detergent is dispensed through gun, remove 1”
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.
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