Landa PHW2-1100 Operator's Manual page 28

PHW SERIES PRESSURE WASHER
28
PROBLEM POSSIBLE CAUSE
BURNER WILL Heavy sooting on coil and burner
can cause interruption of air flow
NOT LIGHT
(continued) and shorting of electrodes.
Improper electrode setting
Fuel not reaching combustion
chamber
Clogged burner nozzle
Water not flowing through flow
switch
Flow switch malfunction
Fuel solenoid malfunction
UNIT SMOKES Improper fuel or water in fuel
Improper air adjustment
Low fuel pressure
Air leaks in fuel lines
Plugged or dirty burner nozzle
Faulty burner nozzle spray pattern
Heavy accumulation of soot on
coils and burner assembly
Misaligned electrode
Obstruction in smoke stack
LOW WATER Improper fuel or water in fuel
TEMPERATURE
Low fuel pressure
Weak fuel pump
Fuel filter partially clogged
Soot build-up on coils
Lime build-up in coils
Improper burner nozzle
TROUBLESHOOTING
SOLUTION
Clean as required.
Clean and set according to diagram in Operator's
Manual.
Check fuel pump for proper flow. Check solenoid flow
switch on machines with spray gun control for proper
on-off fuel flow control.
Replace.
Open spray gun to allow water to flow.
Remove reed and test for continuity. Replace if needed.
Replace if needed.
Drain tank and replace contaminated fuel.
Readjust air bands on burner assembly.
Call technical support.
Check fuel lines for leaks or air bubbles. Tighten or
replace as needed.
Replace.
Replace nozzle.
Remove coils and burner assembly. Clean thoroughly.
Call technical support.
Check for insulation blockage or other foreign objects.
Drain fuel tank and replace with proper fuel.
Increase fuel pressure.
Check fuel pump pressure. Replace pump if needed.
Replace if needed.
Clean coils with soot remover.
Clean inside of coils with coil clean.
See tank assembly parts list for correct nozzle.
LANDA PHW • 9/02
OPERATOR'S MANUAL