English 15 CAUTIONRemove the spark plug cable to preventaccidental ignition of the engine beforemaking any repair.TROUBLESHOOTINGSymptom Cause SolutionEngine will not start No gasoline Fill gas tankChoke is not in the correctposition.Slide choke lever out to closedposition.Water pressure built up inthe machine.Squeeze the trigger to releasethe pressure.For additional engine problems refer to the engine man-ual.Unit does not reachhigh pressure.Diameter of garden hose istoo small.Replace with a 5/8 inch or largergarden hose.Water supply is restricted. Check garden hose for kinks,leaks and blockage.Not enough inlet water sup-ply.Turn water on full force. Checkgarden hose for kinks, leaks orblockage.Water inlet filter is clogged. Remove filter and rinse out inwarm water.Black detergent nozzle isattached.Remove black detergent nozzleand attach high pressure nozzleRemote Pressure Controlregulator not in the highestsetting.Always return the control to thehighest setting.Output pressure var-ies high and low.Not enough inlet water sup-ply.Turn water on full force. Checkgarden hose for kinks, leaks orblockage.Pump is sucking air. Check that hoses and fittings areair tight. Turn off machine andpurge pump by squeezing trig-ger gun until a steady flow of wa-ter emerges through the nozzle.Water inlet filter is clogged. Remove filter and rinse out inwarm water.Spray nozzle is obstructed. Blow out or remove debris with afine needle.Calcified gun, hose orspray wand.Run distilled vinegar through de-tergent suction tube.

Kärcher G 4000 OH Operator's Manual

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