We have had a De Dietrich oven since 2004, and recently it has started
to behave a little strangely. The interior light stays on even when the
oven is turned off, and the self-cleaning heaters never heat up. I
asked De Dietrich for a wiring diagram and a manual, but they won't let
me have them, and only want to set up a service visit, at presumably a
Does anyone have any knowledge of these things? I am perfectly
competent with electrical troubleshooting, but need to have some
information to work with. All the internal wires are unlabelled!
We recently had some power problems in the area, due to a contractor
damaging some overhead cables, so it is possible that a spike may have
hit it and damaged something.
Follow-up to my own post:
I called the service place at the number that they gave me. and a full
service, incl. call-out, labour, parts and VAT is £178. Sounds like a
bargain, and it comes with a 1-year warranty.
The oven was sold by a trade supplier in 2004 for the sum of £549. I
shudder to think what that would be today, I'll look it up when I get
The previous one, we bought second hand, and it was 26 years old when
it finally gave up the ghost.
Sounds like the door switch is faulty & the oven thinks it is always open,
hence the permanently on light and the lack of self-cleaning - the door
must lock due to the high temperatures and if the oven can't determine
that the door is closed it won't lock it.
I had had the same thought, but I couldn't even find the door switch,
looking from the front. I'm going with the service call, as
mentioned elsewhere. If I didn't need the oven to be serviceable, then
I might be more d-i-y-ish, but it is the only one we have, and I can't
afford to have it hanging around in pieces for long.
They came, they installed, they tested, and they left. All in about
forty-five minutes. The switch was a part of the larger door interlock
component, the whole of which was replaced. The reason I couldn't see
it was because the little lever had broken off, and looking at the old
one, I have no idea how I would have gone about repairing it had I
known what it should have looked like.
OK cured my DMP404 which the upper oven wasn't heating up. The light was st
uck on all the time and the internal fan inside the oven was not turning on
when the door was closed. This all turned out to be the double action swit
ch on the top left hand side.if you look in the corner you will see a fork
like lever with a seperate hook in the middle. The outer fork part presses
up against the oven door when it is shut. The inner part is a hook which is
only engaged when the pyro clean function is turned on. This hook is actua
ted by a stepper motor inside the top of the oven. All I had to do was turn
the mains off slide the oven out, remove two screws and slide the top tin
back the reveal this assembly. This is held in by a single torx screw.Once
removed slid the switch assembly towards the back of the oven to lift it ou
t. Cleaning this up and slightly bending the steel plate it slots into at t
he front was all that was required to make it engage properly when the door
was closed. You can test if this is the problem if you turn the oven on a
low heat and depress the forks with your fingers. You will hear a relay cli
ck and the oven fan start.
Yes, I have, and it wasn't what was described there! It needed a new
tiny lever that dropped down at the upper right of the door opening,
which had snapped off. But when it was broken off, there was no obvious
sign that there should have been anything there, if you didn't already
know. But to replace the lever, it needed a new switch/lock assembly,
which was installed, by appointment, by a pair of engineers, who
checked the whole thing out afterwards, and then left me a happy
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