Troubleshooting - Kärcher Landa HOT 2-1100 Operator's Manual

PROBLEM
FLUCTUATING
PRESSURE
PUMP NOISY
PRESENCES OF WA-
TER IN OIL
WATER DRIPPING
FROM
UNDER PUMP
OIL DRIPPINGS
MACHINE SMOKES
WATER TEMPERA-
TURE TOO HOT
18

TROUBLESHOOTING

POSSIBLE CAUSE
Valves worn
Blockage in valve
Pump sucking air
Worn piston packing
Air in suction line
Broken or weak inlet or discharge
valve springs
Excessive matter in valves
Worn bearings
Oil seal worn
High humidity in air
Piston packing worn
O-Ring plunger retainer worn
Pump protector
Oil seal worn
Improper fuel or water in fuel
Improper air adjustment
Low fuel pressure
Weak fuel pump
Fuel filter partially cogged
Soot build up on coils
Lime build up in coils
Improper burner nozzle
Incoming water to machine warm
or hot
Fuel pump pressure too high
Fuel pump defective
Detergent line sucking air
Defective high limit switch
Incorrect fuel nozzle size
Insufficient water supplied
Restricted water flow
8.917-208.0 • HOT • Rev. 05/17
SOLUTION
Check and replace if necessary.
Check and replace if necessary.
Check water supply and air see page at
joints in suction line.
Check and replace if necessary.
Check water supply and connections on suc-
tion line.
Check and clean if necessary.
Check and clean if necessary.
Check and clean if necessary.
Check and replace if necessary.
Check and change oil twice as often.
Check and replace if necessary.
Check and replace if necessary.
Reduce inlet water pressure. Do not close
trigger on spray gun for longer than 1-2
minutes.
Check and replace if necessary.
Drain tank and replace contaminated fuel.
Readjust air bands on burner assembly.
Adjust fuel pump pressure to specifications.
Check fuel pump pressure. Replace pump if
needed.
Replace as needed.
Clean coils with soot remover.
Clean inside of coils using Landa's coil
cleaner.
See combustion assembly breakdown
Lower incoming water temperature.
Lower fuel pressure.
Replace fuel pump.
Tighten all clamps. Check detergent line for
holes.
Replace.
See exploded view parts list for proper size.
Check G.P.M. to machine.
Check nozzle for obstruction, proper size.