Troubleshooting:
Low High Pump Won't Excess
Pressure Pressure Overheat Start
Noise
Possible cause and solution
x
x
x
x
Filter dirty.
Clean or replace.
x
Valves dirty or bent.
Clean or replace.
x x
x
Relief valve set too high.
Inspect and adjust.
x
Relief valve set to low.
Inspect and adjust.
x x x x x
Plugged line.
Inspect and repair.
x x x
Low voltage, won’t start.
Check power source.
x x
Worn cup/piston hitting cylinder.
Replace.
x x
Leaky hose or check valve.
Replace.
x x x x
Dirt or liquid on top of piston.
Inspect and clean.
x x
Blown head gasket.
Replace.
Maintenance:
WARNING! Electrical Shock Hazard. Disconnect electrical power supply before
performing maintenance. Failure to follow these instructions can result in death,
fire, or electrical shock.
WARNING! Injury Hazard. Product surfaces become very hot during operation,
allow surfaces to cool before handling. Air stream from product may contain solid
or liquid material that can result in eye or skin damage, wear proper eye protection.
Wear hearing protection. Failure to follow these instructions can result in burns, eye injury,
or other serious injury.
Inspection:
Be sure to release pressure from product before starting maintenance. Regularly inspect
and maintain air intake filters.
Check all external accessories such as relief valves and gauges for damage.
Service Kits are available and vary by unit.
