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www.chpower.com
PW2770, PW3270, and PW4070
Notes
Troubleshooting Chart - Gasoline Powered Pressure Washers Only
Pump noisy / pump runs
rough
Pressure washer will not
spray detergent
1. Pump drawing in air/low water supply
2. Valves dirty or worn
3. Worn bearings
4. Water too hot
1. Not using soap tip
2. Clog, kink, or hole in detergent suction hose
3. Hose length too long
4. Lance not functioning properly
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. Install 65 degree (black) soap tip
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 one section of hose is
attached to unit.
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”
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.
Symptom Possible Cause(s) Corrective Action(s)