Miele km5951

[mblguy]

Hey guys,
I really like to find out how to fix our miele ceramic induction Cooker. Last evening the breakers of the Cooker Group tripped. Because the Device is already 8yrs Old i decided to look at it myself. I opened the unit and found out the PCB has Black burn marks on it.

So something must have taking too much amps. Then i saw the second thing.

As you might be able to see, the Blue coil is a little bit molten. Could this mean the coil made a short circuit? And is it possible to fix this?

Thanks for reading!
Max

[budm]

Re: Miele km5951

Can we see the straight shot pictures of the whole top and bottom side of the board?
That copper trace blew up due to over current, probably due to shorted components.

[mblguy]

Re: Miele km5951

Sure.




Thank you!

[CapLeaker]

Re: Miele km5951

links like that don't work

[Per Hansson]

Re: Miele km5951

They work just fine for me.

[RJARRRPCGP]

Re: Miele km5951

They work just fine for me.

vBulletin pretty much tells me that they don't exist!

[Per Hansson]

Re: Miele km5951

Please post the error message you get.

[stj]

Re: Miele km5951

Invalid Attachment specified. If you followed a valid link, please notify the administrator

using https

[mblguy]

Re: Miele km5951




Okey, weird yesterday all of a sudden the links turned out instead of a thunbnail.

The error i got was fe 35

Thanks for all the attention guys

[CapLeaker]

Re: Miele km5951

They work just fine for me.

Sorry Per, they don't for me!

"Invalid Attachment specified. If you followed a valid link, please notify the administrator"

[CapLeaker]

Re: Miele km5951

Okey, weird yesterday all of a sudden the links turned out instead of a thunbnail.

The error i got was fe 35

Thanks for all the attention guys

I see cold solders on the back side of the board.

[redwire]

Re: Miele km5951

vBulletin Message
Invalid Attachment specified. If you followed a valid link, please notify the administrator

Those two links don't work for me either.


Blowing a trace and 20A fuses the power semiconductors have obviously failed short circuit. I don't see them in the pics. They are what I would I would test first.

[mblguy]

Re: Miele km5951

The fuses were never in there, i already tried with 20A fuses in it but they did not do their job as the kitchen group breakers tripped again.

[CapLeaker]

Re: Miele km5951

What is printed on the IC next to R115? Sounds like there is a dead short, if you plug it in an it trips the breaker right away.

[budm]

Re: Miele km5951

You have another board with hestsink so more likely that is where the power semiconductors are and they may be shorted out. To trip the panel breaker, it has to be some shorted power devices.
How about pictures that show every thing?

[mblguy]

Re: Miele km5951

Okey, i forgot to say the breakers dont go immediately after plugging the device in. It powers up fine but once we turn on one heater it all trips again.
I cannot take the pictures right now as i am not home atm. But you are right, there are 2 another panels with 4 transistors each,
connected to a heatsink. As soon as i get home i Will try to look at it.

[diif]

Re: Miele km5951

Sounds like the heating element is blown.

[mblguy]

Re: Miele km5951

Thats a really good guess, i forgot to check if it is the same with the other heaters. Sadly, i didn't have time today and this week is going to be tough too. I might try to check on it in the end of the week if my parents didn't buy a new one already.

[budm]

Re: Miele km5951

It is induction coil, not the typical heating element.

[Stefan Payne]

Re: Miele km5951

What caps are used?
One of them looks like a Teapo?