20 Most Recent Karcher WV50 Window Vacuum - Page 2 Questions & Answers

Have you over filled it and tipped the karcher to one side that sometimes makes warter blow out the vents give it a good shake on its side then try again.

If you contact one of the Karcher Centers ( details are on Karcher.co.uk website) they may be able to help. regards Gary

I had the same problem but discovered on opening up the unit that the motor was a bit stiff to turn. I therefore prised off the fan and removed the waterproof shroud only to discover some corrosion on the front bearing. A drop of WD40 did the job and now its working again good as new.

Have you tried to take it all apart just a small bit of rubbish will stop it from working.

Hi. I've just bought the karcher window vac wv50 & am having the same problem finding the serial No. I presume you want to register your product for the guarantee to be valid. I went online Karcher.co.uk & registered mine. You will note that when doing so it does not ask for a serial number but a model No. This is found on the side of box you got the item in (mine is just above the barcode) & it reads something like; 1.633-113.0. Hope you still have the box!

Replace the switch! It shut down when battery get depleted. and then when you start it again the cycle is shorter because the batery regenerate but not as previous cycle.

it ma be the battery as gone dead