No way to know for sure, but my guess is that the scorch marks are unrelated
and may just be normal discoloration over time.

You have the element removed, correct? Check it or have your buddy check
it with a multimeter. My guess is that it's now open circuit and needs to
be replaced even though it looks good.

(BTW, found the pics by changing the "101" to other numbers, you should have
provided explicit links.)

+-------------------------------------------------------------------+
|Filename: inside.jpg |
|Download: http://www.diybanter.com/attachment....tachmentid=101 |
+-------------------------------------------------------------------+

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+Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
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vera writes:

Make: NEFF Model: B1421W

My oven caused the circuit breaker/trip switch to 'trip' the other day.
Everything seems to work fine now except it won't generate any heat when
using the oven - the grill works fine though.

A work colleague said it could be the element and that he'd replaced
one before and it wasn't too difficult. I first pulled the oven out and
took the back cover off. I quickly realised I should be opening it up
from the inside to get to the element, but noticed two scorch marks
(see back_view.jpg, scorch1.jpg and scorch2.jpg) on the insulating
material. I still thought my best bet was the element so put the back
cover back on and went to look inside.

The element looks fine to me (see inside.jpg and element2.jpg) and I
couldn't remove the fan itself in order to investigate behind the back
panel of the oven interior.

Are the scorch marks 'normal' or are they a likely cause of the oven
not heating? If they are related, what could have caused them? I'd
expect them to be closer together (they're on either side of the oven),
but that's only because the two wires connecting to the element enter at
the same point and also the scorch marks don't look like they were
caused by heat from the inside, though there's nothing between all the
gubbins at the back and the exterior panel at the back that looks to
have caused them either.

All advice most appreciated. The oven is only 3 years old and I'd like
to repair it myself if possible - with the help of some knowledgeable
folk on this board of course!

Many thanks in advance,

\/era