Lamona Oven Glass Shattered

[kris]

I have written about the Lamona (Howden) inner door glass once before.
It seems like the problem of the inner door glass shattering is
greater than I originally thought, therefore I have decided to
investigate the matter thoroughly.

The Reason

My research proves that the reason behind the shattered glass is a
design flaw. It seems to me like the two fitting screws on each side
of the glass put enormous pressure on the glass during cooking. During
the cooking cycle heat of up 250C force the glass and screws to expand
and then shrink back again to it's original size when the oven cools
down. However glass and metal don't expand and shrink in the same way
(this is down to the physic properties known as Thermal Expansion).
The process creates huge forces (Mechanics: Stress) between glass and
screws. Unfortunately glass is not as “flexible” as metal screws,
therefore when the stress reaches a critical point glass simply
explodes in order to release accumulated energy.

Conditions

I have conducted a survey amongst customers who had their Lamona oven
glass shatter, and here are some key facts:

1. The average lifespan of the oven glass seems to be about 9-12
months

2. It appears that there are more chances that your oven glass
will explode if you tamper with the fixing, i.e. you unscrew the glass
in order to clean it and then screw it back again.

Affected Models

Lamona appliances are made by numerous manufacturers therefore the
same glass is not used in all Lamona ovens. Here’s the list of
affected models that we know of:

Lamona:

HJA3200, HJA3242, HJA3310, HJA4600, HJA3202, HJA3300, HJA3313,
HJA4610, HJA3240, HJA3303, HJA3650

Beko:

8540MB, BE62SSX, BE66FCHX, BE68MSX, 8540MX, BE63FCHX, BE66FSW,
BE92FVW, 9908MB, BE63FGHX, BE66FSX, BE92FVX, 9908MW, BE63FGHXP,
BE66MSW, CIF207000MX, 9908MX, BE65FCHW, BE66MSX, CIG200000MB, AFO60X,
BE65FGHW, BE66SSW, CIG200000MW, APG60X, BE65FGHW/1, BE66SSX,
CIG201000MB, B61GHFX, BE65FGHX, BE68FSK, CIG201000MW, B61GHFXP,
BE65FGHX/1, BE68FSW, CIG201000MX, BE61FSW, BE65FGHXP, BE68FSX,
CIG202000MX, BE61FSX, BE65FSW, BE68MSK, CIG202001MX, BE62SSW, BE65FSX,
BE68MSW, CIG203001MX

Where to buy?

You can get your Lamona Oven Glass from either
http://sparesmarket.co.uk/parts/view/11421/Lamona%20(Howden)/183 or
parts-central.co.uk

[Weatherlawyer]

Are you advertising the glass or warning against the oven?

[kris]

On Oct 28, 1:38 am, Weatherlawyer <weatherlaw...@gmail.com> wrote:
> Are you advertising the glass or warning against the oven?

There's a significant problem with the oven design, and I took this
matter personally as I am the unlucky owner of the oven myself. It
seems like most of people have to replace oven glass sooner or later.
In my professional life I am an engineer and there has been no day for
the past months without broken Lamona oven glass.

On my blog I have mention the matter back few moths ago and it started
a huge debate. It seems like the manufacturer doesn’t seem to
acknowledge the problem, as long as people will continue to buy
replacement glass.
Furthermore, Lamona is not a manufacturer but a “mashup” of various
brands including Beko, Belling, Whirlpool, etc. therefore there is no
one to take the blame for the design.

As per advertising, I got the links from Google top results. People
often ask me where they can get the glass from. I have no preference
nor I am associated with either company in any form.

[harry]

It's normal practice to have soft washers under the fixing screw
washers to prevent this.

[Brian Gaff]

I'd have thought the industry would have this sort of thing sorted by now,
maybe using some form of pliable material which is good for the
temperatures. I can well remember my Mothers old Belling cooker glass always
breaking back in the 70s. this had some kind of bonded metal fittings which
I have no doubt were half the problem.
Can't get the designers I guess.

Brian

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[Ellie]

Glass exploded on mine today , scared the hell out my daughter , is there a manufacturers warranty with the ovens

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[GB]

On 02/07/2021 20:01, Ellie wrote:
> Glass exploded on mine today , scared the hell out my daughter   , is
> there a manufacturers warranty with the ovens
>

All Lamona appliances come with a 3-year manufacturer warranty as standard.

[Vir Campestris]

On 02/07/2021 20:01, Ellie wrote:

> Glass exploded on mine today , scared the hell out my daughter   , is
> there a manufacturers warranty with the ovens
>

If there is I dare say the original one has expired after nine years.

Andy

[Brian Gaff (Sofa)]

Yes, well, the old oven door disintegration seems to have always been
common, since I can remember this sort of thing when I was a lad.
Brian

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[Amanda]

Same has just happened to me an hour ago!

[Sysadmin]

On Thu, 30 Sep 2021 17:15:03 +0000, Amanda wrote:

> Same has just happened to me an hour ago!

9 years and one hour.

[Brian Gaff (Sofa)]

Yes it must be the aliens have finally returned after a long trip.

Brian

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