PUMP TROUBLESHOOTING
SYMPTOM
PROBABLE CAUSE
REMEDY
No discharge at nozzle when
Inadequate water supply.
Ensure hose is 3/4” diameter and
trigger mechanism is squeezed.
incoming water supply is turned on.
Kink in water inlet hose.
Remove kink.
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Water inlet screen obstructed.
Remove screen, clean or replace.
Pump sucking air. (Prime eliminated)
Tighten all water intake connections
Eliminate leaks in intake line.
Not in high pressure mode.
Insert a high pressure nozzle.
Obstructed or worn spray nozzle.
Remove, clean or replace.
Damaged or obstructed valve assy.
Remove, inspect, clean or replace.
on pump.
Pump packings worn.
Replace packings.
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Water is leaking from the “Heat
Water temperature is too high.
Do not allow the unit to operate in
Dump Valve”
the bypass mode (with trigger gun
closed) for more than 3 minutes.
Defective valve.
Replace.
Oil appears milky or foamy.
Water in oil.
Change pump oil. Fill to proper
level.
Oil leaking from unit.
DO NOT USE!!!!!
Contact
CSE
Customer
Service.
Detergent will not siphon into
Detergent strainer is not completely
Check, submerge if necessary.
Low Pressure Detergent mode.
submerged in detergent solution.
Detergent strainer obstructed.
Inspect, clean or replace.
Detergent hose cut, obstructed or
Inspect, clean or replace.
kinked.
Detergent adjusting knob on pump
Open adjusting knob. Refer to
turned to closed position. (If applicable.) “Cleaning with Detergents” pg. 15
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Nozzle assembly is plugged.
Too many high pressure hose
extensions attached to the water outlet.
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Clean or replace.
Use one extension maximum.
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container.
missing or corroded.
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trigger gun is locked in the “OFF”
position.
Revision 11/3/2021
17
