| Problem |
Possible Cause |
Correction |
| Engine will not start or stops operating. |
Low Oil Shutdown. |
Fill engine with oil. |
| Engine switch not in the "ON" position. |
Turn switch "ON". |
| Pressure build up in hose. |
Squeese Trigger. |
| Engine is overloaded. |
Nozzle partially blocked. |
Clean nozzle. |
| Excessive Pressure. |
Reduce pressure by using pressure adjustment knob. |
| Water or oil leaking from bottom of pump. |
A small amount of leakage is normal. |
If Excessive leaking occurs call the Customer Service Department. |
| Pressure increases when gun is closed. |
Bypass valve not operating properly. |
Call the Customer Service Department. |
| Engine running but pump not building maximum pressure or has irregular pressure. |
Faucet closed. |
Open Faucet. |
| Unit has been stored in freezing temperatures. |
Thaw out unit completely including hose, gun and wand. |
| Inadequate water supply. |
Provide a minimum of 4 gpm at 20 psi. |
| Water inlet screen clogged. |
Clean screen. |
| Kink in garden hose. |
Replace nozzle. |
| Air in pump. |
Let run with gun open and wand removed until steady stream of water is released. |
| Adjustable pressure knob not set to maximum position. |
Set to maximum position. |
| Suction or discharge valves clogged or worn out. |
Call the Customer Service Department. |
| By-pass valve not operating effectively. |
Call the Customer Service Department. |
| No intake of chemicals. |
Injection tube not securely inserted into unit. |
Push firmly into injector. |
| Tube cracked or split. |
Replace tubing. |
| Wrong nozzle. |
Switch to low pressure nozzle. |
| Injector turned off. |
Turn collar counter clockwise. |
| Injection tube strainer clogged. |
Clean strainer. |
| Nozzle blocked. |
Clean nozzle. |
| Dried chemicals injector. |
Dissolve by running warm water trough the injection tube. |
| Trigger will not move. |
Gun safety lock engaged. |
Release safety lock. |
| Water in crankcase. |
High humidity. |
Change oil more frequently. |
| Worn seals. |
Call the Customer Service Department |
| Noisy operation. |
Worn bearings. |
Call the Customer Service Department |
| Air mixed with water. |
Check inlet lines for restrictions and/or proper sizing. |
| Rough/pulsating operation with pressure drop. |
Worn Packing. |
Call the Customer Service Department. |
| Inlet Restriction. |
Check system for stoppage, air leaks, correctly sized inlet plumbing to pump. |
| Unloader. |
Check unloader for proper operation. |
| Air mixed in water |
Check inlet lines for restrictions and/or proper sizing. |
| High crankcase temperature. |
Wrong grade of oil. |
Check inlet lines for restrictions and/or proper sizing. |
| Improper amount of oil in crankcase. |
Adjust oil level to proper amount. |
