Fault Finding - Nilfisk Gerni N/G-4001A Instrucciones De Manejo

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Symptoms
Cause
High pressure cleaner
Switch not activated.
does not start.
High pressure cleaner not
connected to the power.
Fuse burnt out.
Missing voltage in plug.
High pressure cleaner
Fuse burnt out.
stops suddenly.
Low voltage.
Motor or coil too warm.
Operating pressure too high (nozzle dirty).
Motor hums when
Fuse burnt out.
started.
Fault on the power line.
High pressure hose and
Air in the pump.
pistol shake.
Detergent valve open.
Lack of water.
By-pass valve
Nozzle partly blocked.
"hammers" or pressure
gauge oscillates with
open pistol.
Safety valve starts func-
Primary nozzle partly blocked.
tioning or high pressure
cleaner operates at too
high a pressure.
Pressure nozzle partly blocked.
Nozzle does not tilt.
Turbo Laser dirty.
Turbo Laser filter dirty.
Turbo Laser leaks.
Gaskets defective.
No detergent added.
Detergent tank empty.
Detergent filter dirty.
Metering valve closed.
Boiler smokes.
Water in the fuel.
The machine suddenly
Detergent tank empty (takes in air).
gives off steam.
Suction side of pump leaks (takes in air).
The burner cuts out
Thermostat set too low.
during operation.
No water supply.
No fuel.
Fuel filter dirty.
Water in the fuel.
The burner starts and
Fuel filter dirty.
stops incorrectly with correct
working pressure.
Thermostat set too low.
Burner does not light.
Wrong phase sequence.
Thermostat set too low.
Fuel filter dirty.
Water in the fuel.
High pressure cleaner
Detergent tank empty (takes in air).
does not operate at max.
Detergent hose defective.
pressure/pressure oscil-
Suction side of pump leaks (takes in air).
lates.
High pressure nozzle blocked.
The machine needs descaling.
High pressure nozzle worn.
Air in the system.
The water does not reach
Operating thermostat set too low.
operating temperature.
Fuel filter dirty.
The machine needs descaling.
All manuals and user guides at all-guides.com

FAULT FINDING

Corrective action
Set switch in pos. "AUT".
Put in the plug, switch on the mains switch.
Change fuse. If fuse burns out again,
contact service department.
Connect voltage according to el. diagram.
Change fuse. If fuse burns out again,
contact service department.
Extension cable too long, contact service department.
Set switch in pos. "0" and wait 15 min. Restart the
machine.
Clean/change nozzle (see technical data).
Change fuse. If fuse burns out again or motor still
hums, contact service department.
Check voltage in the plug.
Tighten suction hose.
Turn the detergent regulation to pos. "0".
Clean suction filter. Open tap completely.
Remove and clean the nozzle.
Remove and clean front nozzle.
Remove and clean pressure nozzle.
Disconnect and clean Turbo Laser.
Clean/change the filter (see maintenance).
The leak may seal itself by continued usage.
Change gaskets (Service kit).
Fill up.
Clean detergent filter.
Open.
Empty and clean fuel tank (see maintenance) .
Fill tank. Close metering valve
and bleed air out of the hoses.
Check for leaks - tighten hose clamp.
Check thermostat setting and make correction.
Turn on water.
Fill tank.
Clean fuel filter (see maintenance).
Empty and clean fuel tank (see maintenance).
Clean fuel filter (see maintenance).
Check thermostat setting and reset.
Change phases in the electric plug.
Check thermostat setting and make correction.
Clean fuel filter (see maintenance).
Empty and clean fuel tank (see maintenance).
Fill tank. Close detergent valves.
Change detergent hoses.
Check for leaks, tighten hose clamps.
Disconnect nozzle and clean it carefully.
Descale the machine according to maintenance.
Install new nozzle. Note type (see technical data).
Bleed out the cleaner. Open pressure regulating handle,
activate the pistol.
Let the machine run until stable pressure is reached.
Check thermostat setting and make correction.
Clean fuel filter (see maintenance).
Descale the machine according to maintenance.
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