The 'window' covering the microwave inlet has broken in half. It's never had more than a gentle wipe when removing condensation.
It looks like textured aluminium, but obviously not metal, and clips into 2 little hook-type things.
I can't see any way of repairing it - and would be wary of using wrong material. I don't know what it's called so can't look for a new one - looks like new oven time!
Any ideas, please?
The 'window' covering the microwave inlet has broken in half. It's never had more than a gentle wipe when removing condensation.
It looks like textured aluminium, but obviously not metal, and clips into 2 little hook-type things.
I can't see any way of repairing it - and would be wary of using wrong material. I don't know what it's called so can't look for a new one - looks like new oven time!
Any ideas, please?
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the tube
side?
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium, but obviously not metal, and clips
into 2
little hook-type things.
I can't see any way of repairing it - and would be wary of using wrong
material. I don't know what it's called so can't look for a new one -
looks
like new oven time!
Any ideas, please?
<https://www.amazon.co.uk/microwave-waveguide-cover/s?k=microwave+waveguide+cover>
On 19:26 31 Mar 2025, alan_m said:
On 31/03/2025 19:12, Andy Burns wrote:
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had more than a gentle wipe when removing condensation. It
looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the
tube side?
Yes it's a mica sheet and generic sheets are available from many
sources
https://www.ebay.co.uk/sch/i.html?_nkw=Microwave+mica+sheet
Although it flakes a bit it's possible to cut them to size with
scissors or a sharp craft knife. Possibly worth getting two sheets -
on to practice on. You may be lucky and find a sheet cut for the
microwave model.
What I found is that if a food cover is not used on fatty food the fat
sticks to the mica and over time carbonises which in turn results in a
burn hole in the sheet.
Over-enthusiastic cleaning of my microwave resulted in the protective mica sheet coming loose. I taped it into position and have been more careful
about not dislodging it.
However the OP's mica sheet has broken in half and needs replacing.
I notice some advice sites suggest keeping an eye on the sheet for burns or holes although I'm not sure how they would have occurred.
The 'window' covering the microwave inlet has broken in half. It's never had more than a gentle wipe when removing condensation.
It looks like textured aluminium
You should buy more than one, while you practice cutting them.
Since these are 90% mica and 10% resin, they're not nearly
as evil as raw mica sheet is. Raw mica flakes with little
provocation.
If you get a "factory" one, then it is pre-cut. The only way
you can foul up then, is if the microwave design requires you
to "bend" the item to fit into the holder.
You can stick your caliper on it, and measure the thickness
of the original. A holder designed for a particular thickness of sheet,
might not tolerate a thin one (wobbles a bit). Or a thick sheet
might not fit at all.
And the Panny one with the one screw, don't over-tighten that.
This is not a job for a mechanic with an air-wrench. You can
apply a lot of pressure to mica -- but it should be uniform
pressure, not trying to tear a hole through the sheet. The
screw would bruise all around the hole, if overtightened.
By using one screw, there is no issue with the sheet going
to high temperature during a run. There is enough slack it
can expand (whatever the tempco is).
Paul
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's never had >> more than a gentle wipe when removing condensation.
It looks like textured aluminium, but obviously not metal, and clips into 2 >> little hook-type things.
I can't see any way of repairing it - and would be wary of using wrong
material. I don't know what it's called so can't look for a new one - looks >> like new oven time!
Any ideas, please?
<https://www.amazon.co.uk/microwave-waveguide-cover/s?k=microwave+waveguide+cover>
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's never had >> more than a gentle wipe when removing condensation.
It looks like textured aluminium, but obviously not metal, and clips into 2 >> little hook-type things.
I can't see any way of repairing it - and would be wary of using wrong
material. I don't know what it's called so can't look for a new one - looks >> like new oven time!
Any ideas, please?
Often there are "Parts Catalogues" for Domestic Appliances which show
all the parts in exploded views. This is the one for my NEFF..
https://www.neff-home.com/uk/supportdetail/product/C17MR02G0/91#/Tabs=section-spareparts/
Dave
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the tube
side?
On 31/03/2025 19:12, Andy Burns wrote:
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the tube
side?
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do. My Daewoo oven has some kind of moulded pale grey
panel.
On 31/03/2025 19:12, Andy Burns wrote:
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the tube
side?
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do. My Daewoo oven has some kind of moulded pale grey panel.
On 02/04/2025 11:23, Max Demian wrote:
On 31/03/2025 19:12, Andy Burns wrote:Mica has some very good dielectric properties that stop it getting hot.
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the
tube side?
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do. My Daewoo oven has some kind of moulded pale grey
panel.
Other insulators are not as good
On 31/03/2025 19:12, Andy Burns wrote:
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the tube
side?
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do. My Daewoo oven has some kind of moulded pale grey
panel.
On 02/04/2025 11:33, The Natural Philosopher wrote:
On 02/04/2025 11:23, Max Demian wrote:
On 31/03/2025 19:12, Andy Burns wrote:Mica has some very good dielectric properties that stop it getting hot.
On 31/03/2025 18:07, PeterC wrote:
The 'window' covering the microwave inlet has broken in half. It's
never had
more than a gentle wipe when removing condensation.
It looks like textured aluminium
I though they were mica?
I don't think they "do" anything apart from keep stuff out of the
tube side?
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do. My Daewoo oven has some kind of moulded pale grey
panel.
Other insulators are not as good
Some consideration has to be given to what gets attached to the surface
of the cover. Unless the food is religiously covered while cooking the surface of the cover is going to get a layer of splattered food,
especially splattered fat. It's this layer that continues to cook and
gets hotter while the microwave is on. The most common failure of the
cover is a burn through where the seed was the splattered food getting carbonised and burning.
Why does it have to be mica? Surely any reasonably heat resistant
insulator would do.
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