Kärcher Landa HOT 2-1100 Operator's Manual

Contents

8.917-208.0 • HOT • Rev. 05/17PRESSURE WASHER Troubleshooting Guide18TROUBLESHOOTINGPROBLEM POSSIBLE CAUSE SOLUTIONFLUCTUATINGPRESSUREValves worn Check and replace if necessary.Blockage in valve Check and replace if necessary.Pump sucking air Check water supply and air see page atjoints in suction line.Worn piston packing Check and replace if necessary.PUMP NOISY Air in suction line Check water supply and connections on suc-tion line.Broken or weak inlet or dischargevalve springsCheck and clean if necessary.Excessive matter in valves Check and clean if necessary.Worn bearings Check and clean if necessary.PRESENCES OF WA-TER IN OILOil seal worn Check and replace if necessary.High humidity in air Check and change oil twice as often.WATER DRIPPINGFROMUNDER PUMPPiston packing worn Check and replace if necessary.O-Ring plunger retainer worn Check and replace if necessary.Pump protector Reduce inlet water pressure. Do not closetrigger on spray gun for longer than 1-2minutes.OIL DRIPPINGS Oil seal worn Check and replace if necessary.MACHINE SMOKES Improper fuel or water in fuel Drain tank and replace contaminated fuel.Improper air adjustment Readjust air bands on burner assembly.Low fuel pressure Adjust fuel pump pressure to specifications.Weak fuel pump Check fuel pump pressure. Replace pump ifneeded.Fuel filter partially cogged Replace as needed.Soot build up on coils Clean coils with soot remover.Lime build up in coils Clean inside of coils using Landa's coilcleaner.Improper burner nozzle See combustion assembly breakdownWATER TEMPERA-TURE TOO HOTIncoming water to machine warmor hotLower incoming water temperature.Fuel pump pressure too high Lower fuel pressure.Fuel pump defective Replace fuel pump.Detergent line sucking air Tighten all clamps. Check detergent line forholes.Defective high limit switch Replace.Incorrect fuel nozzle size See exploded view parts list for proper size.Insufficient water supplied Check G.P.M. to machine.Restricted water flow Check nozzle for obstruction, proper size.

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