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18 Troubleshooting
18.1 Correcting faults in the pressure washer
18 Troubleshooting
Fault Cause Remedy
The pressure washer does 
not start although the 
spray gun trigger is 
squeezed.
The mains plug of the connecting cord or 
extension cord is not plugged in.
► Plug in mains plug of connecting cord or 
extension cord.
The circuit breaker (fuse) or the overload cutout 
has tripped. There is an electrical overload or a 
fault in the circuit.
► Look for cause of tripping and remedy it. 
Insert circuit breaker (fuse) or overload 
cutout.
► Switch off other loads connected to the same 
circuit.
The fuse rating of the socket is too low. ► Plug the connecting cord into a socket with 
the correct fuse rating, @ 19.1.
The extension cord does not have the correct 
cross-section.
► Use an extension cord with an adequate 
cross-section, @ 19.2
The extension cord is too long. ► Use an extension cord of the correct length, 
@ 19.2
The electric motor is too warm.  ► Allow the pressure washer to cool for 
5 minutes.
► Clean the nozzle.
The pressure washer does 
not start when switched 
on. The electric motor 
hums.
The mains voltage is too low. ► Squeeze and hold the spray gun trigger and 
switch on the pressure washer.
► Switch off other loads connected to the same 
circuit.
The extension cord does not have the correct 
cross-section.
► Use an extension cord with an adequate 
cross-section, @ 19.2
The extension cord is too long. ► Use an extension cord of the correct length, 
@ 19.2
The pressure washer 
switches off while in 
operation.
The plug of the connecting cord or extension 
cord has been pulled out of the socket.
► Plug in mains plug of connecting cord or 
extension cord.
The circuit breaker (fuse) or the overload cutout 
has tripped. There is an electrical overload or a 
fault in the circuit.
► Look for cause of tripping and remedy it. 
Insert circuit breaker (fuse) or overload 
cutout.
► Switch off other loads connected to the same 
circuit.