not very sharp

We actually bought this about five years ago, then forgot about it. I discovered it in a cupboard six months ago and did all the windows inside (we pay somebody to do outside). It did a great job and I always enjoy seeing how dirty the collected water is. I forgot about it again until yesterday when I did the downstair window insides. They today I started on the rest. Five panes in it started making a buzzing sound in the motor area and then cut out with the green charging light flashing. It let me switch it on again and the buzzing got louder and it stopped working again. Other people complain in these reviews about motor noises and cutting out...I reckon this is it. Now, this is a simple machine to take apart (and mine is years out of warranty) - the black base cover clips off; a handful of Torx 10 screws separates the two halves, and the switch, motor and suction tube assembly come out in one piece. Take off the impeller cover (two clips at the fat end of the suction tube unit). The fault lies in how the impeller is positioned on the motor shaft. Looking inside the impeller cover showed that the fins had been rubbing against the inside of he cover and when the motor finds it's up against resistance it cuts out to stop itself burning out. If you push the impeller too far onto the shaft it fouls on the motor housing and stops after a second or two, too high on the shaft it fouls on the impeller cover again. Trial and error (doesn't take long) to adjusting the impeller on the shaft sorts it out. Don't know how long for, because it seems the impeller is likely to vibrate itself out of position again. Maybe I'll clean the spindle and the hole and add a bit of thread lock. I reckon it's a design fault, but one that can be remedied with 10 minutes attention if you're out of warranty or don't care.

Whilst the product does the job very well indeed ours, has now stopped working simply because the micro switch for off and on has broken. What a waste of plastic which now goes to landfill. Marcher really should be able to make a product that lasts and should have more respect for the environment as this problem is due to cost cutting on a very expensive product. Quite disappointing.

I was given my Window Vac last year and use it every week for windows, shower screens, mirrors and tiles

I've been using my wv2 window vac regularly for a variety of tasks over the past few years; internal bathroom window and tiled walls after every bath, car windows after wash and external house windows including second story. While the performance is great I am starting to question the reliability... several internal plastic parts are very fragile leading to breakage and the motor has become quite noisy over time. Regarding usability I have little to complain about; addition of a loop to attach a lanyard would be useful when climbing ladders and better designed tank plug would be nice as the current one can be tricky to operate.