Kärcher K 6.50 MB User Manual

Contents

187. PROBLEM CHECKLISTThe machine you have chosen is of the highest quality. Correctly storedaway from frost it should operate without problems. If a problem doesarise, please check the following chart as a solution may be at hand.PROBLEM POSSIBLE CAUSE CORRECTIONMachine refusesto startPlug not connectedDefective socketFuse blownDefective extension cableWrong mains voltageConnect plugTry another socketChange the fuseTry without extension cableCheck mains voltage correspondsto specifications of machinePump stops Fuse blownOverheating due to poorwater SupplyChange fuse and check size ofextension cableCheck inlet water flow rate - hoseshould fill a 10 litre bucket in oneminuteStrong pressurefluctuationsNozzle partly blockedInadequate mains waterClean dirt from nozzle hole withneedle and rinse from the frontCheck inlet water flow rateMachine doesnot reachoperatingpressureNozzle blocked/worn outInadequate mains waterInlet hose squeezedWater filter clogged (3.1item15)Inlet hose blockedClean/replace nozzleCheck inlet water flow rateStraighten out hoseClean filterCheck hose for leaks or blockagesNo detergentsuctionWrong pressureBlocked filter indetergent tankSet Spray Lance at the minimumworking pressureUnblock filterClean ventilation hole in cover ofDetergent TankIn the unlikely event that you need to return your machine to your supplier,please ensure that this is returned, complete with hose, gun and allaccessories.Note: Inrush currents cause short-time voltage drops. Under unfavourable powersupply conditions other equipment may be affected. If the system impedance ofthe power supply is < 0,15 Ohms, disturbances are unlikely to occur.