Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Lee GLS on May 25, 2013, 11:54:16 am

Title: WCW backpack speed controller
Post by: Lee GLS on May 25, 2013, 11:54:16 am
I've got the WCW backpack with the speed controller on, but just recently, it's messing around, when you turn it nothing happens then all of a sudden it kicks in, it's like the contacts inside the controller are dirty.

Can these be taken apart, or do they have to be replaced?
Title: Re: WCW backpack speed controller
Post by: a900 on May 25, 2013, 12:23:25 pm
I have a wcw backpack. Found it would work then cut out. If it was knocked it would start up again. I concluded loose wire somewhere.

Had to replace the controller about a year ago as I snapped of the numpty. Controller electric board is resin bonded in a case so can't be worked on. Maybe u just have a loose wire?
Title: Re: WCW backpack speed controller
Post by: andyM on May 25, 2013, 04:19:04 pm
I've got the WCW backpack with the speed controller on, but just recently, it's messing around, when you turn it nothing happens then all of a sudden it kicks in, it's like the contacts inside the controller are dirty.

Can these be taken apart, or do they have to be replaced?

I had a similar problem.
Stripped it down, renewed and soldered connections and seemed ok.
Not long after same problem, checked it out, battery was good, pump works, connections were sound but the problem seems intermittent. I could not get to the bottom of it so have retired the ferkin' thing to the garage and not used it since.
This is a common problem with them and the carpet cleaners on this forum who use them have had problems aswell.
They are built to a price so not made to last in my opinion.
Title: Re: WCW backpack speed controller
Post by: Richard60 on May 25, 2013, 06:02:33 pm
i found water gets in .through threaded bit .wcw said if u dry them out they should work .if you dry them out what i did was silicone  the gap .or just take it off n bypass the wires .simple to do .then put a tap on pole
Title: Re: WCW backpack speed controller
Post by: phillipscleaning on May 25, 2013, 06:20:29 pm
Think this is a comon problem with them i have got 3 wcw backpacks 2 of the controllers have gone. If it's less than 12mths old give them a call they will replace it. And as it's been said put sealant around the thread section stop water getting in  8)
Title: Re: WCW backpack speed controller
Post by: GoodFella2006 on May 25, 2013, 11:00:48 pm
I disconnected the flow controller and the voltmeter so it's battery,on-off switch and the pump.But it still needs a kick to start time to time.

Probably dodgy pressure switch.
Title: Re: WCW backpack speed controller
Post by: Richard60 on May 26, 2013, 07:43:04 pm
like phillip said .fair play they replaced my controllers .i olso have sealant around gap above screws .were their used too be a rubber seal .on the yellow backpack .this stops water getting in n rotting the battery connectors
Title: Re: WCW backpack speed controller
Post by: Lee GLS on May 26, 2013, 08:12:17 pm
thanks for the advice guys, ive taken the bottom off, and its a bit moist in there, so ive got the heater on everything, see if it dries the speed controller and works.
Title: Re: WCW backpack speed controller
Post by: combat1 on May 27, 2013, 07:10:00 am
Took mine out, I always had it on full flow anyway and for me problem now solved. I have noticed that my battery needs a good twelve hours charge to do a days work.
Title: Re: WCW backpack speed controller
Post by: johnny bravo on May 27, 2013, 04:59:10 pm
ive had 3 new speed controllers in the last year,  my warranty has expired so I will have to buy new ones now, around £15.        still worth it.       ive noticed they haven't got the 18litre one now.
Title: Re: WCW backpack speed controller
Post by: Lee GLS on May 27, 2013, 08:10:42 pm
Well I dried it out, sprayed some wd40 down the end of it and its all working again now, but for how long?