Flimsy Bosch Athlet 25.2V cordless vacuum cleaner

I quite like the idea of this vacuum cleaner in that it’s lightweight, easy to use, highly portable and easy to maintain. All things that make a great product.

The particular vacuum cleaner came in to the workshop, just outside of its warranty period and had been looked after well.  However, it had developed a nasty intermittent cutting-out problem when in use.  I also noticed that the charger’s flex had also cracked near the wall plug, making it dangerous while charging.

First things first and it was off with the rollers and filters to clean any obstructions that might make a device like this overheat.  Nothing obvious there, but all items cleaned and washed as a precaution to allow the roller to move freely and the vacuum to breathe easily.

Closer inspection of the handle area revealed a weakness in the design which had meant that the quick-release mechanism had caused an electrical connection to degrade, causing the cutting out.

The only remedy was to address the handle’s weak point with a mechanical fix and make good the electrical contact.

I hope Bosch take note and make an improvement in this area on an otherwise nicely engineered item.

I also did a small repair to the damaged flex on the charger.

Cost of a new vacuum cleaner, circa £250.  Cost of screw… less than 50p (without my time of course!)

Here’s a little video of the repair…

 

 

Chilly Hotpoint Tumble Dryer (VTD00)

A cheap fix for an old tumble dryer.

A tumble dryer that didn’t dry

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FixItWorkshop, Worthing,  Feb’17.  Hotpoint (VTD00) tumble dryer (Ariston, Creda, Indesit similar.  Now drying once more…

This machine is our very own, which decided to stop drying clothes.  Everything seemed to work; the drum was going around, the timer was working and nothing sounded out of sorts, but it started taking longer and longer to dry clothes.  In short, it wasn’t well.

This particular model is well documented online as it’s the same one with a world-wide model recall.  Fortunately, Hotpoint/ Indesit/ Creda/ Ariston have an excellent recall process and information service.  In fact if you’re concerned about yours, please visit http://www.hotpointservice.co.uk/safety-notices/ to see if your machine is listed.  This machine had been modified and was cleared safe for use.

Anyway, it was time to dig out the tools.  There’s not much to a tumble dryer really, the most expensive and important part being the motor, which in this case was fine.  Having tested the heating elements for suitable resistance, it was time to check the wiring, which also tested fine.

Since the machine would heat up and then cool, it suggested a temperature control system fault.  This machine has three temperature sensors; one in the exhaust and two on the back of the heater, the latter two to act as heat control and safety cut out.

If you’re still reading,  it turned out that the exhaust thermostat sensor was at fault.  Once it has allowed a brief heat cycle, it would shut down for ages.  It had excess temperature switch ‘hysteresis’.  The spare part was about £12, so versus the cost of a replacement machine at about £170, it was well worth spending time on the machine.