8 Trouble-shooting
To avoid unnecessary disappointments, you should check the following before contacting the Nilfisk 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 Nilfisk |
| or stuck | distributor |
| Pump seals worn out | Clean and replace or refer to local Nilfisk |
|
| 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 specification 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 | specifications required (see model tag) |
|
| NB! Avoid using long, thin hoses (min. 1/2") |
| Nozzle partially blocked | Clean the nozzle (see section 7.2) |
| Water filter blocked | Clean the filter (see section 7.1) |
| Hose kinked | Straighten out hose. |
Machine often starts | Pump/spray gun is | Contact your nearest Nilfisk 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 filter blocked | Clean the filter (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 Nilfisk distributor.
UK:
Customer Services at Penrith - 01768 868995
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