Hi guys,

My AEG Competence 2100B (I think its the 2100) oven has just started
playing up.

When I switch it on to, say, 200/c it works for about 20mins and then
cuts out. It all appears to be working ok but the oven isn't being
heated and it gently cools down. The lights work on the front except
the 'heating now' one on the left-hand side and the control dials are
burning hot.

It then takes about 30mins to cool down (you can monitor its
temperature with the thermostat dial). Some time later (not timed it
yet) it will work as normal again for 20mins.

Does any one know what the problem is and how to fix it ? the oven is
2yrs old.

Thanks in advance

Todd.

On 26 Nov 2006 03:12:01 -0800, "toddgibbs" wrote:

Hi guys,

My AEG Competence 2100B (I think its the 2100) oven has just started
playing up.

When I switch it on to, say, 200/c it works for about 20mins and then
cuts out. It all appears to be working ok but the oven isn't being
heated and it gently cools down. The lights work on the front except
the 'heating now' one on the left-hand side and the control dials are
burning hot.

It then takes about 30mins to cool down (you can monitor its
temperature with the thermostat dial). Some time later (not timed it
yet) it will work as normal again for 20mins.

Does any one know what the problem is and how to fix it ? the oven is
2yrs old.

Thanks in advance

Todd.

IANAE but I do have the 4100 and had a *similar* problem !

On this model there is a cut-out device installed under the top cover, centrally
above the oven. In my case this failed and killed the oven full-stop.

In your case it sounds as if it's functioning corrently. i.e. the oven housing
is over-heating. I guess this points to the cooling fan not running. There
should be a air-stream being forced through the housing, in the 4100 case, by a
cylindrical type fan, mounted towards the rear, which exits through a vent in
the door.

HTH
Andy

The message .com
from "toddgibbs" contains these words:

When I switch it on to, say, 200/c it works for about 20mins and then
cuts out. It all appears to be working ok but the oven isn't being
heated and it gently cools down. The lights work on the front except
the 'heating now' one on the left-hand side and the control dials are
burning hot.

My similar model did something similar.

There's a fan that runs while the oven is on, to draw air through the
casing to keep the innards cool, and it also runs on for a while after
you switch off to cool it down. For safety there's a thermal cutout
which turns the oven off if the inside (that's the gubbins, not the oven
space) gets too hot.

What happend on mine was the delay device that was supposed to keep the
fan running on after use failed. It was a crap design, there's a little
blue silicone sock in which is a heater element and a thermal switch.
When you switch on the heater makes the thermal switch operate the
cooling fan. When you switch off the silicone sock insulates things so
it doens't switch off too soon. The switch connections are
soldered/brazed/whatever onto the substrate and after a while they burn
out.

The upshot is you have no cooling fan running, so it all gets too hot
and the safety cutout operates. Infuriating.

I took the silly blue thing out and replaced it with a relay and a small
timer. OK, so the fan now runs on for perhaps longer than necessary but
at least I get my dinner.

The bit that's died looks like this...
http://www.skipweasel.pwp.blueyonder...ges/AEGbit.jpg

--
Skipweasel
Pay no attention to that man behind the curtain.

Thanks for the repliles guys.

The cooling fan does run sometimes, but it definately is off when it
gets too hot.

Strangely, if I set the oven to 100/c it runs fine for ages (until I
switched it off). The thermostat governs the temperature correctly and
switches the oven on/off appropriately.

Why doesn't it function when set to 200/c? I would expect the
thermostat to govern the temperature as before regardless of the fan
....

I'll do some more tests (ie, leave it at 150/c, 170/c etc and see what
it does)

Thanks again.

Todd.


Guy King wrote:

The message .com
from "toddgibbs" contains these words:

When I switch it on to, say, 200/c it works for about 20mins and then
cuts out. It all appears to be working ok but the oven isn't being
heated and it gently cools down. The lights work on the front except
the 'heating now' one on the left-hand side and the control dials are
burning hot.

My similar model did something similar.

There's a fan that runs while the oven is on, to draw air through the
casing to keep the innards cool, and it also runs on for a while after
you switch off to cool it down. For safety there's a thermal cutout
which turns the oven off if the inside (that's the gubbins, not the oven
space) gets too hot.

What happend on mine was the delay device that was supposed to keep the
fan running on after use failed. It was a crap design, there's a little
blue silicone sock in which is a heater element and a thermal switch.
When you switch on the heater makes the thermal switch operate the
cooling fan. When you switch off the silicone sock insulates things so
it doens't switch off too soon. The switch connections are
soldered/brazed/whatever onto the substrate and after a while they burn
out.

The upshot is you have no cooling fan running, so it all gets too hot
and the safety cutout operates. Infuriating.

I took the silly blue thing out and replaced it with a relay and a small
timer. OK, so the fan now runs on for perhaps longer than necessary but
at least I get my dinner.

The bit that's died looks like this...
http://www.skipweasel.pwp.blueyonder...ges/AEGbit.jpg

--
Skipweasel
Pay no attention to that man behind the curtain.

The message . com
from "toddgibbs" contains these words:

Why doesn't it function when set to 200/c? I would expect the
thermostat to govern the temperature as before regardless of the fan

Because at 100°C the casing can shed enough heat to stop the safety
device shutting it off. At 200°C it can't so after a while it dies.

Take it apart and find the blue thing in the picture - bet it's charred.

--
Skipweasel
Pay no attention to that man behind the curtain.

On Sun, 26 Nov 2006 17:17:09 GMT, Guy King wrote:

The message . com
from "toddgibbs" contains these words:

Why doesn't it function when set to 200/c? I would expect the
thermostat to govern the temperature as before regardless of the fan

Because at 100°C the casing can shed enough heat to stop the safety
device shutting it off. At 200°C it can't so after a while it dies.

Take it apart and find the blue thing in the picture - bet it's charred.

Yes I changed mine. Did you get Part P approval for your modification ? ;-)

Andy

Ok, I'll have it out tonight

Any idea where I can get a replacement part? (and what the part number
is?)

TIA

Todd
Guy King wrote:

The message . com
from "toddgibbs" contains these words:

Why doesn't it function when set to 200/c? I would expect the
thermostat to govern the temperature as before regardless of the fan

Because at 100°C the casing can shed enough heat to stop the safety
device shutting it off. At 200°C it can't so after a while it dies.

Take it apart and find the blue thing in the picture - bet it's charred.

--
Skipweasel
Pay no attention to that man behind the curtain.

On 26 Nov 2006 09:31:13 -0800, "toddgibbs" wrote:

Ok, I'll have it out tonight

Any idea where I can get a replacement part? (and what the part number
is?)

TIA


Melton Technical Services Ltd (Service Force Centre)
Melton Technical Services Ltd (Service Force Centre)
Unit H3 Burrell Road
Haywards Heath
RH16 1TW

Telephone: 0845-337 9019
Website: http://www.serviceforce.co.uk/relay.aspx?tl1

Will do them but they aren't cheap ! There may be cheaper places around.

Andy

The message
from Andy Cap contains these words:

Yes I changed mine. Did you get Part P approval for your modification ? ;-)

It's my cooker.

May I refer you to the Owner's Manifesto?

--
Skipweasel
Pay no attention to that man behind the curtain.

The message .com
from "toddgibbs" contains these words:

Any idea where I can get a replacement part? (and what the part number
is?)

I didn't pursue that option when I fixed mine 'cos I didn't want to put
a known **** part back into an otherwise OK cooker. I used a relay and
shoved a delay onto it.

--
Skipweasel
Pay no attention to that man behind the curtain.

Well, you were 100% correct, The little blue thing looks just like your
photo, all burnt out.

I'll call the company you suggested tomorrow to get a replacement. Do
you happen to know what the part is called ?

TIA

Todd
Guy King wrote:

The message .com
from "toddgibbs" contains these words:

Any idea where I can get a replacement part? (and what the part number
is?)

I didn't pursue that option when I fixed mine 'cos I didn't want to put
a known **** part back into an otherwise OK cooker. I used a relay and
shoved a delay onto it.

--
Skipweasel
Pay no attention to that man behind the curtain.

Well, you were 100% correct, The little blue thing looks just like your
photo, all burnt out.

I'll call the company you suggested tomorrow to get a replacement. Do
you happen to know what the part is called ?

TIA

Todd
Guy King wrote:

The message .com
from "toddgibbs" contains these words:

Any idea where I can get a replacement part? (and what the part number
is?)

I didn't pursue that option when I fixed mine 'cos I didn't want to put
a known **** part back into an otherwise OK cooker. I used a relay and
shoved a delay onto it.

--
Skipweasel
Pay no attention to that man behind the curtain.

The message om
from "toddgibbs" contains these words:

I'll call the company you suggested tomorrow to get a replacement. Do
you happen to know what the part is called ?

"That sodding stupid piece of crap that should (and has) been replaced
with a proper circuit".

Out of interest, let me know how much the spare is - and whether it
looks the same or not.

--
Skipweasel
Pay no attention to that man behind the curtain.

On 27 Nov 2006 13:18:23 -0800, "toddgibbs" wrote:

Well, you were 100% correct, The little blue thing looks just like your
photo, all burnt out.

I'll call the company you suggested tomorrow to get a replacement. Do
you happen to know what the part is called ?

TIA


The thermal cut-out thingy in the blue sleeve ! ;-)

Andy