Landa HOT2-1100 Operator's Manual page 26

HOT SERIES PRESSURE WASHER
26
PROBLEM
FLUCTUATING
PRESSURE
PUMP NOISY
PRESENCE OF WATER
IN OIL
WATER DRIPPING FROM
UNDER PUMP
OIL DRIPPING
MACHINE SMOKES
WATER TEMPERATURE
TOO HOT
TROUBLESHOOTING
POSSIBLE CAUSE
Valves worn
Blockage in valve
Pump sucking air
Worn piston packing
Air in suction line
Broken or weak inlet or disharge 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 clogged
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
LANDA HOT • 96-626 • REV. 2/04
OPERATOR'S MANUAL
SOLUTION
Check and replace if necessary.
Check and replace if necessary.
Check water supply and air seepage at joints
in suction line.
Check and replace if necessary.
Check water supply and connections on
suction line.
Check and replace 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 five (5)
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.