Kärcher HE-201006D Operator's Manual

Also see for HD 1.8/14 Ed: Operator's manual

Contents

9.800-088.0 • REV. 0/08PRESSURE WASHER Troubleshooting Guide10TROUbLESHOOTINgPRObLEM POSSIbLE CAUSE SOLUTIONPUMP RUNNINgNORMALLy bUTPRESSURE LOW ONINSTALLATIONPump sucking air Check water supply and possibility of air seep-age.Check valves sticking Check and clean or replace if necessary.Unloader valve seat faulty Check and replace if necessary.Nozzle incorrectly sized Check and replace if necessary.Worn piston packing Check and replace if necessary.fLUCTUATINgPRESSUREValves worn Check and replace if necessary.Blockage in valve Check and replace if necessary.Pump sucking air Check water supply connections.Worn piston packing Check and replace if necessary.Insufficient water Check filter and hose for breakage/cloggingPRESSURE LOWAfTER PERIOD OfNORMAL USENozzle worn Check and replace if necessary.Suction or delivery valves worn Check and replace if necessary.Suction or delivery lines blocked Check and clean if necessary.Unloader valve seat worn Check and replace if necessary.Worn piston package Check and replace if necessary.Water temperature excessive Reduce to below 140o F.PUMP NOISy Air in suction line Check water supply and connections on suctionline.Broken or weak suction or deliveryvalve spring.Check and replace if necessary.Foreign matter in valves Check and clean if necessary.Worn bearings Check and replace if necessary.Water temperature excessive Reduce to below 160o F.PRESENCE Of WATERIN PUMP OILOil seal worn Check and replace if necessary.High humidity in air Check and replace if necessary.Piston packing worn Check and replace if necessary.WATER DRIPPINgfROM UNDER PUMPPiston packing worn Check and replace if necessary.O-ring plunger retainer worn Check and replace if necessary.WATER DRIPPINg fROMPUMP PROTECTORWater supply pressure too high(over 90 psi)Lower water supply pressure using regulator.Spray gun is in the off position for over1- minutesTurn machine off if not in use for over 1- min-utes.OIL DRIPPINg Oil seal worn Check and replace if necessary.ExCESSIvE vIbRATION INHIgH PRESSURE HOSEIrregular functioning of the pumpvalvesCheck and replace if necessary.MOTOR DOES NOT STARTWHEN SWITCHED ONPlug not well connected or lack ofpower supplyCheck plug, cable and switch.WHEN SWITCHINg ON THEMACHINE, MOTOR HUMSbUT DOES NOT RUNMain voltage is insufficient, lower thanthe minimum required.Check to make sure main power supply isadequate.The pump is stuck or frozen Check by turning the motor manually.MOTOR STOPS Tripped thermal overload due to over-heatingCheck that main voltage corresponds to specifica-tions for the machine. Wait a few minutes beforeturning on the machine again by resetting theGFCI on the cord.