Re: OT : ebuyer UPS Recall

["Mark A. Ryder" <mark@xxxxxxxxxxxx>]

I found a design-flaw in this UPS....the hard way.

My understanding is that there is a flaw in the design of the device
that switches in when mains is restored in these UPS's.   Not sure
whether it is the reason for the recall though.

When power is cut and restored within a couple of seconds, the faulty
component seems to apply inverter power and mains power to the
output.   I have both the 650 and 1000 model.  (It was the 1000 model
that fried)

Luckily for me, the fault occurred when I was standing next to it,
rather than the units tucked away in the loft.    I had just
installed a new rack for some new network data storage in the garage
and the UPS was installed to provide clean power and cover any loss
of mains power.    I switched-off the wrong plug by mistake (the plug
supplying the UPS) and switched it back on within a couple of
seconds.    As soon as power was switched back in, the UPS started
sizzling, crackling and emitting a rather disturbing plume of
smoke.   The quickest thing I could do was pull the mains lead out
the back of the unit, but it was still frying.  Nothing cut-out, no
fuses or anything!     In desperation I pressed the button on the
front of the UPS and it still worked and shut the thing off.

It made me seriously consider the wisdom of trusting these units for
a remote/hidden install in the loft space.

Mark






Mark Andrew Ryder

(e-mail) mark@xxxxxxx
(web) www.markryder.us

(mobile) +44 (0) 7725 051 140
(home) +44 (0) 1733 244 796



On 29 Dec 2005, at 17:49, Gareth Cook wrote:

> ebuyer seem to be doing a recall for their own brand UPS's. Had a
> mail the
> other day someone would call me, and they havnt.
>
> Anoither mail today for me to call them - on an 0845  number - cheeky
> buggers. But says they will refund -no mention of a replacement.
>
> I've had this thing quite a while - any reason why they shouldnt be
> replacing it with an equivalent  rather than me having to source
> another ?
> Possibly at more expense to me ?
>
> G.
>
>  Gareth Cook
>  Tools and Process Architect
>  IBM SWG Sales - Lotus Park, Staines, TW18 3AG
>  Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
>  AIM Chat : TheBoyG - MSN Chat : chat@xxxxxxx
>  email: g@xxxxxxx
>
>
>
>
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