General Troubleshooting Guide
Symptom
Pressure washer does not
start up
Motor stops suddenly
Unit begins to smoke
Pump noisy / pump runs
rough
Pressure washer will not
spray detergent
Possible Cause(s)
1. GFCI has tripped
2. Plug is not well connected or
electric socket is faulty
3. Extension cord too long or
wire size too small
4. Main voltage supply too low
5. Thermal safety switch has
tripped
1. Extension cord too long or
wire size too small
2. Thermal safety switch has
tripped due to overheating
Overheated, overloaded or
damaged motor
1. Pump drawing in air/low
water supply
2. Valves dirty or worn
3. Worn bearings
4. Water too hot
1. Not using soap nozzle
2. Clog, kink, or hole in
detergent suction hose
3. Hose length too long
4. Lance not functioning
properly
www.campbellhausfeld.com
MODEL: CP5211, CP5216, CP5321
Corrective Action
1. Push reset button on plug
2. Check plug, socket and fuses
3. Remove extension cord
4. Check that main supply voltage is adequate
5. Switch off unit and allow motor to cool down
1. Remove extension cord
2. Check that main supply voltage corresponds to
specifications
Turn off unit and call 1-800-330-0712
1. Ensure fittings are tight. Increase water pressure
2. Check, clean or replace
3. Check and replace
4. Reduce temperature below 100° F
1. Install 65° (black) soap nozzle
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 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 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.
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