Kärcher SGP-302517 Manual page 17

PROBLEM POSSIBLE CAUSE
BURNER WILL
Burner nozzle is clogged
NOT LIGHT
Thermostat has malfunctioned
(continued from
previous page)
Fuel solenoid has malfunctioned
MACHINE
Fuel is improper or water is in fuel
SMOKES
Air adjustment is improper
Fuel pressure is low
Burner nozzle is plugged or dirty
Burner nozzle spray pattern is
faulty
Coil and burner assembly have
heavy accumulation of soot
Electrode setting is misaligned
Smoke stack has obstruction
Engine RPM is low
LOW WATER
Fuel is improper or has water in it
TEMPERATURE
Fuel pressure is low
Fuel pump is weak
Fuel filter is partially clogged
Soot buildup on coils is not
allowing heat transfer
Burner nozzle is improper
WATER Incoming water to machine is
TEMPERATURE warm or hot
TOO HOT
Fuel pump pressure is too high
Fuel pump is defective
Fuel nozzle is incorrect size
Water supplied is insufficient
Water flow is restricted
PRESENCE OF
Oil seal is worn
WATER IN OIL
Air humidity is high
Packing is worn or bad
TROUBLESHOOTING
Manual Karcher SGP 9.801-192.0 - H
SOLUTION
Clean as required.
Test and replace if needed.
Test and replace if needed.
Drain tank and replace contaminated fuel.
Readjust air bands on burner assembly.
Adjust fuel pump pressure to specifications.
Replace nozzle. Check parts breakdown for
nozzle size.
Replace nozzle. Check parts breakdown for
nozzle size.
Remove coils and burner assembly, clean
thoroughly. Call local dealer.
Realign electrodes to specifications.
Check for blockage or other foreign objects.
Increase RPM to correct specs. See serial
plate.
Replace with clean and proper fuel.
Increase fuel pressure.
Check fuel pump pressure. Replace pump if
needed.
Replace as needed.
Clean coils.
Call your local dealer for proper nozzle.
Lower incoming water temperature.
Call your local dealer for proper fuel pressure.
Replace fuel pump.
See parts breakdown or serial plate for proper
size.
Check water GPM to machine.
Check nozzle for obstruction and proper size.
Check serial plate for correct size.
Check and replace if necessary.
Check and change oil twice as often.
Check and replace if necessary.
17