Nilfisk-ALTO C 120.4 user manual Trouble-shooting

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8 Trouble-shooting

To avoid unnecessary disappointments, you should check the following before contacting the Nilfi sk service organization:

Symptom

Cause

Recommended action

Machine refuses to start

Machine not plugged in

Plug in machine.

 

Defective socket

Try another socket.

 

Fuse has blown

Replace fuse. Switch off other machines.

 

Defective extension cable

Try without the extension cable.

Fluctuating pressure

Pump sucking air

Check that hoses and connections are air-

 

 

tight.

 

Valves dirty, worn out

Clean and replace or refer to local Nilfi sk

 

or stuck

distributor

 

Pump seals worn out

Clean and replace or refer to local Nilfi sk

 

 

distributor.

Motor busses

Low voltage or

Activate the trigger of the spray gun.

 

low temperature

 

Machine stops

Fuse has blown

Replace fuse. Switch off other machines.

 

Incorrect mains voltage

Check that the mains voltage corresponds

 

 

to specifi cation on the model tag.

 

Thermal sensor activated

Leave the washer for 5 minutes to cool

 

 

down.

 

Nozzle partially blocked

Clean the nozzle (see section 7.2)

Fuse blows

Fuse too small

Change to an installation higher than the

 

 

amp. consumption of the machine.

 

 

You may try without the extension cable.

Machine pulsating

Air in inlet hose/pump

Allow machine to run with open trigger until

 

 

regular working pressure resumes.

 

Inadequate supply of

Check that the water supply corresponds to

 

mains water

specifi cations required (see model tag)

 

 

NB! Avoid using long, thin hoses (min. 1/2")

 

Nozzle partially blocked

Clean the nozzle (see section 7.2)

 

Water fi lter blocked

Clean the fi lter (see section 7.1)

 

Hose kinked

Straighten out hose.

Machine often starts

Pump/spray gun is

Contact your nearest Nilfi sk Service

and stops by itself

leaking

Centre.

Machine starts, but

Pump/hoses or accessory

Wait for pump/hoses or accessory to thaw.

no water comes out

frozen

 

 

No water supply

Connect inlet water.

 

Water fi lter blocked

Clean the fi lter (see section 7.1)

 

Nozzle blocked

Clean the nozzle (see section 7.2)

 

 

 

In case problems other than the above occur, please contact your local Nilfi sk distributor.

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Contents Nilfisk C Symbols used to mark in- structions Safety Precautions and WarningsIndex Description Mains power connectionWater connection Connection to ApplicationOperation elements Before you start using your pressure washerModel survey Specifications See model tagMounting of quick coupling Mounting of high pres- sure hose Operating your pressure washerConnection of high pres- sure hose Min m and max m will Water connectionIMPORTANT! Only use water without any Pressure regulation on the Tornado PR- nozzle Point the nozzle at the groundGeneral Fields of application and working methodsMechanical effect Typical fields of application Task Accessories ‘Click Cleaning method Clean’Never START-UP a Frozen Machine After using your pressure washerStorage of accessories MaintenanceWall storage Page Trouble-shooting Further information Warranty conditionsAccessories EU Declaration of Conformity Page 128303202 a