Landa SDHW5-3000 Operator's Manual page 25

SDHW SERIES PRESSURE WASHER
PROBLEM
BURNER WILL NOT
LIGHT cont.
MACHINE SMOKES
BURNER MOTOR WILL
NOT RUN
LOW WATER
TEMPERATURE
WATER
TEMPERATURE
TOO HOT
TROUBLESHOOTING
POSSIBLE CAUSE
Thermostat faulty or slow engine
speed
Flow switch malfunction
Flow solenoid malfunction
Improper fuel or water in fuel
Improper air adjustment
Low fuel pressure
Plugged, dirty or faulty burner nozzle
causing incorrect spray pattern
Heavy accumulation of soot on coils
and burner assembly
Misaligned electrode setting
Obstruction in smoke stack
Low engine RPM
Fuel pump seized
Burner fan loose or misaligned
Defective control switch
Loose wire
Defective burner motor
Improper fuel or water in fuel
Low fuel pressure
Weak fuel pump
Fuel filter partially clogged
Soot buildup on coils not allowing
heat transfer
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
(For parts and information call your Landa Dealer)
LANDA SDHW • REV. 12/02
OPERATOR'S MANUAL
SOLUTION
Increase engine RPM to increase
voltage.
Remove, test for continuity and replace
as needed.
Replace if needed.
Drain tank and replace contaminated
fuel.
Readjust air bands on burner assembly.
Adjust fuel pump pressure to
specifications. Call local Landa Dealer.
Replace nozzle.
Remove coils and burner assembly,
clean thoroughly. Call local Landa
Dealer.
Realign electrodes to specifications.
Check for insulation blockage or other
foreign objects.
Increase RPM. See serial plate for RPM.
Replace fuel pump.
Position correctly, tighten set screws.
Replace switch.
Check and replace or tighten wiring.
Replace motor.
Replace with clean and proper fuel.
Increase fuel pressure.
Check fuel pump pressure. Replace
pump if needed.
Replace as needed.
Clean coils. Call local Landa Dealer.
See breakdown for model.
Lower incoming water temperature.
Call local Landa Dealer for proper fuel
pressure.
Replace fuel pump.
Tighten all clamps. Check detergent
lines for holes.
Replace.
See breakdown for model.
Check water G.P.M. to machine.
Check serial plate for proper size.
25