TROUBLESHOOTING GUIDE
SYMPTOM
Engine will not start (see
Engine Owner's Manual for
further engine
troubleshooting)
No or low pressure (initial use)
Will not draw chemicals
No or low pressure
(after period of normal use)
Water leaking at gun/spray
wand connection
Water leaking at pump
Pump pulsates
POSSIBLE CAUSE(S)
1. No fuel
2. Pressure builds up after two pulls on
the recoil starter or after initial use
3. Choke lever in the "No Choke" position 3. Move choke to the "Choke" po si tion
4. Spark plug wire not attached
5. Engine switch in OFF po si tion.
6. Choke lever in the "Choke" position
on a "hot" engine or an engine that
has been exposed to thermal heat for a
long period of time.
1. Spray wand not in high pressure
2. Low water supply
3. Leak at high pressure hose fitting
4. Nozzle obstructed
5. Water filter screen clogged
6. Air in hose
7. Choke in the "Choke" position
8. High pressure hose is too long
1. Spray wand not in low pressure
2. Chemical filter clogged
3. Chemical screen not in cleaning
solution
4. Chemical too thick
5. Pressure hose is too long
6. Chemical build up in chemical injector
1. Worn seal or packing
2. Worn or obstructed valves
3. Worn unloader piston
1. Worn or torn o-ring
2. Loose hose connection
1. Loose connections
2. Piston packings worn
3. Worn or torn o-ring
4. Pump head or tubes damaged from
freezing
Nozzle obstructed
15
CORRECTIVE ACTION
1. Add fresh fuel
2. Squeeze gun trigger to relieve pres sure
4. Attach spark plug wire
5. Place engine switch in ON position.
6. Move choke to the "No Choke" po si tion.
1. See How to Use Spray Wand instructions in the
Operation Section
2. Water supply must be at least 5 gpm @ 20 PSI
3. Repair leak. Apply sealant tape if necessary
4. See Nozzle Cleaning instructions in the Maintenance
section
5. Remove and clean filter. See Cleaning Water Inlet
Filter paragraph in the Maintenance section for the
correct procedure
6. Turn off the engine, then the water source.
Disconnect the water source from the pump inlet and
turn the water source on to remove all air from the
hose. When there is a steady stream of water present,
turn water source off. Re- con nect water source to
pump inlet and turn on wa ter source. Squeeze trigger
to re move re main ing air
7. Move choke to the "No Choke" po si tion
8. Use high pressure hose under 100 feet (30 m)
1. See How to Use Spray Wand paragraph in the
Operation Section
2. Clean filter
3. Make sure end of detergent siphon hose is fully
submerged into cleaning solution
4. Dilute chemical. Chemical should be the same
consistency as water
5. Lengthen water supply hose instead of high pressure
hose
6. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
1. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
2. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
3. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
1. Check and replace
2. Tighten
1. Tighten
2. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
3. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
4. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
See Nozzle Cleaning paragraph in the Maintenance
section for the correct procedure