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* Engine wil not start or stops while operating.
Low-oil shutdown:
Engine switch not in "ON" position:
Pressure built up in hose:
Fill engine with oil
Turn switch "ON"S
Squeezetrigger while starting
* Engine is overloaded
Nozzle partially blocked
Excessive pressure
CleanNozzle
Shortenthespring coilon the refluxvalve
* Pressureincreaseswhengun is locked
Bypassvalveblocking Clean the bypass valve
* Engineis runningbut pumpwon't build maximumpressureor hasirregularpressure
Faucet closed
Unit has been stored in freezing temp.
Inadequate water supply
Water inlet screen clogged
Kink in garden hose
Wand nozzle worn or damaged
Air in pump
Adjustable pressure knob not set
to maximum position
Suction or discharge valves clogged
or worn out
Bypass valve not operating effectively
Openfaucet
Thawout unit completely
Providea minimumof 4 GPMat 20 PSi
Cleanscreen
Straightengardenhose
Replacenozzle
Runwith gun open& wandremoved
until steadystreamof water is released
Setto maximumposition
Clean the suction or discharge valves
Clean the bypass valve
* No intake of chemicals
Injection tube not securely inserted
into unit
Tube cracked or split
Wrong nozzle
Injector turned off
Pushfirmly into injector
Replace tube
Switch to low pressure nozzle
Turn collar counter
* Trigger will not move
Gun safety lock engaged Release safety lock
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