17
8. Trouble
Shooting
Electricity can cause severe injuries. Electrical components thoroughly
and frequently to be checked for damages and malfunctions, in order to
avoid any cause for accidents. Disconnect the unit from the electrical
network during all repair/maintenance work (ZH 1/95).
Trouble Shooting: - only to be carried out by qualified service personnel.
Malfunction
Cause/Remedy
Unit does not start.
Switch on main switch.
Insert
plug.
Check
fuse.
Check
proper
voltage.
Electr. motor overloaded. Cool down.
Stop the unit – call qualified service.
Unit stops during operation.
Check/replace fuse.
Switch
on
main
switch
again.
Clean/replace
nozzle.
Electr. motor overloaded. Cool down.
Stop the unit – call qualified service.
Operating pressure low/varies
Check water supply, check filter.
Bleed
unit.
Fill
detergent
tank.
Clean
water
filter.
Remove
scaling.
Clean/replace
spray
nozzle.
Tighten
suction
hose.
Clean/replace
pump
valves.
Stop the unit – call qualified service.
Vibrations on high pressure hose Bleed unit.
pistol
Fill
detergent
tank.
Stop the unit – call qualified service.
No detergent dosing.
Open detergent adjusting nozzle.
Fill
detergent
tank.
Clean filter in suction hose.
Burner does not start.
Refill fuel tank.
Temperature not achieved.
Correct thermostat adjustment.
Clean
fuel
filter.
Excessive exhaust fume
Clean fuel filter.
formation.
Call
qualified
service.
