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11
MODELS: PW2770, PW3270, PW4070
Troubleshooting Guide (Continued)
SYMPTOM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Engine will not start or is hard
to start
1. No gasoline in fuel tank or carburetor
1. Fill the tank with gasoline,open fuel shut off valve.
Check fuel line and carburetor
2. Low oil
2. Check oil level. Fill if necessary
3. Start/Stop switch in stop position
3. Move switch to start position
4. Water in gasoline or old fuel
4. Drain fuel tank and carburetor. Use new fuel and
dry spark plug
5. Dirty air cleaner filter
5. Remove and clean or replace
6. Spark plug dirty, wrong gap or wrong
type
6. Clean, adjust the gap, or replace
7. Spray gun closed
7. Trigger spray gun
8. Other causes
8. See engine owner’s manual
Engine misses or lacks power
1. Partially plugged air cleaner filter
1. Remove and clean or replace
2. Spark plug dirty, wrong gap or wrong
type
2. Clean, adjust the gap, or replace
Pump noisy / pump runs
rough
1. Pump drawing in air/low water supply
1. Ensure fittings are tight. Increase water pressure
2. Valves dirty or worn
2. Discharge or check, clean or replace
3. Worn bearings
3. Check and replace
4. Water too hot
4. Reduce temperature below 100° F
Pressure washer will not spray
detergent
1. Not using soap nozzle
1. Install 65 degree (black) soap nozzle
2. Clog, kink, or hole in detergent suction
hose
2. If clean, unkink or replace hose.
3. Hose length too long
3. Use only hose length provided with initial purchase
of pressure washer. Detergent suction will not
function if more than one section of hose is
attached to unit.
4. Lance not functioning properly
4. Remove lance from gun. If detergent is dispensed
through gun, the lance must be replaced. If no
detergent is dispensed through gun, remove
1 inch 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.
