14 English CAUTIONRemove the spark plug cable to preventaccidental ignition of the engine beforemaking any repair.TROUBLESHOOTINGSymptom Cause SolutionEngine will notstartNo gasoline Fill gas tankChoke is not in the correctposition.Slide choke lever out toclosed position.Water pressure built up in themachine.Squeeze the trigger to releasethe pressure.For additional engine problems refer to the engine manual.Unit does notreach highpressure.Diameter of garden hose is toosmall.Replace with a 5/8 inch orlarger garden hose.Water supply is restricted. Check garden hose for kinks,leaks and blockage.Not enough inlet water supply. Turn water on full force.Check garden hose for kinks,leaks or blockage.Water inlet filter is clogged. Remove filter and rinse out inwarm water.Black detergent nozzle isattached.Remove black detergentnozzle and attach highpressure nozzleOutput pressurevaries high andlow.Not enough inlet water supply. Turn water on full force.Check garden hose for kinks,leaks or blockage.Pump is sucking air. Check that hoses and fittingsare air tight. Turn off machineand purge pump by squeez-ing trigger gun until a steadyflow of water emergesthrough the nozzle.Water inlet filter is clogged. Remove filter and rinse out inwarm water.Spray nozzle is obstructed. Blow out or remove debriswith a fine needle.Calcified gun, hose or spraywand.Run distilled vinegar throughdetergent suction tube.

Kärcher G 4000 RH Operator's Manual

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