Kärcher 1.575-550.0, Operator'S Manual

Page: 16 / 40

9.800-079.0 • REV. 11/06
PRESSURE
W
ASHER
Tr
oub
leshooting Guide
16
TRoUbleSHooTINg
PRobleM PoSSIble CAUSe SolUTIoN
bURNeR WIll
NoT lIgHT
(continued from
previous page)
Burner nozzle is clogged Clean as required.
Thermostat has malfunctioned Test and replace if needed.
Fuel solenoid has malfunctioned Test and replace if needed.
MACHINe
SMokeS
Fuel is improper or water is in fuel Drain tank and replace contaminated fuel.
Air adjustment is improper Readjust air bands on burner assembly.
Fuel pressure is low Adjust fuel pump pressure to specifications.
Burner nozzle is plugged or dirty Replace nozzle. Check parts breakdown for
nozzle size.
Burner nozzle spray pattern is
faulty
Replace nozzle. Check parts breakdown for
nozzle size.
Coil and burner assembly have
heavy accumulation of soot Remove coils and burner assembly, clean
thoroughly. Call local dealer.
Electrode setting is misaligned Realign electrodes to specifications.
Smoke stack has obstruction Check for blockage or other foreign objects.
Engine RPM is low
Increase RPM to correct specs. See serial
plate.
loW WATeR
TeMPeRATURe
Fuel is improper or has water in it Replace with clean and proper fuel.
Fuel pressure is low Increase fuel pressure.
Fuel pump is weak Check fuel pump pressure. Replace pump if
needed.
Fuel filter is partially clogged Replace as needed.
Soot buildup on coils is not
allowing heat transfer Clean coils.
Burner nozzle is improper Call your local dealer for proper nozzle.
WATeR
TeMPeRATURe
Too HoT Incoming water to machine is
warm or hot
Lower incoming water temperature.
Fuel pump pressure is too high Call your local dealer for proper fuel pressure.
Fuel pump is defective Replace fuel pump.
Fuel nozzle is incorrect size
See parts breakdown or serial plate for proper
size.
Water supplied is insufficient Check water GPM to machine.
Water flow is restricted
Check nozzle for obstruction and proper size.
Check serial plate for correct size.
PReSeNCe oF
WATeR IN oIl
Oil seal is worn Check and replace if necessary.
Air humidity is high Check and change oil twice as often.
Packing is worn or bad Check and replace if necessary.