Repair Tefal induction hob

[ajh]

I bought a single hob portable induction cooker a few years ago and
didn't get on with the few power settings it offered.

Six months ago I took to use it for frying as it was a lot quicker than
my ceramic hob. Then I discovered it was good for my pressure cooker and
when the kettle failed it was just as good for bringing water to the boil.

Thus it was getting regular use until today when it would not power up,
I checked the 3pin socket and plug and that was fine and as there was no
life or error messages it must be the hob that is faulty.

Tefal offer a repair service but for a sixty quid (£84 now) appliance I
cannot see it being worth a professional having a look.

Has anyone had any success with DIY induction cooker repairs?

[me9]

I'm sure my Tefal cost less than that!

Mine failed (not a Tefal) and was replaced by a Tefal.

Eventually I opened teh old one and discovered teh fault was an open circuit
heat fuse located in the centre of the element. Replacd that at a cost of
<£1 and now I have a spare induction hob.

--
braind

[Brian Gaff]

Still not quite sure how this helped his kettle. The induction hobs need to
have a ferrous metal container on them to work.
As an aside, I notice you can now get 1 and two unit ones that speak as
well for reasonable prices from Cobalt Systems. I doubt if they make the hob
bit but it is good to have spoken confirmation of what you are doing.
Brian

--

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[SteveW]

On 17/04/2023 09:06, Brian Gaff wrote:
> Still not quite sure how this helped his kettle. The induction hobs need to
> have a ferrous metal container on them to work.

It is as quick to boil water in a pan on an induction hob as in a
kettle, so the kettle is simply not missed.

I do still use a kettle to make tea/coffee, but heat water from cold on
the hob when cooking - with the previous, non-induction, hob, we always
used to boil water in the kettle first and then put it in the pan for
cooking, as the kettle was quicker. The induction hob, on boost, can hit
around 4.5kW!

[ajh]

Thanks for that, I suspect much the same as there is no life in it, so
shall find my security bits and open it up.

[ajh]

Precisely

[Tim Lamb]

In message <ka4ilr...@mid.individual.net>, ajh
<ne...@loampitsfarm.co.uk> writes

Our Quooker supplies hot water for saving induction hob cooking times as
well as making tea and coffee.

--
Tim Lamb

[Rod Speed]

On Mon, 17 Apr 2023 18:06:02 +1000, Brian Gaff <brian...@gmail.com>
wrote:

> I notice you can now get 1 and two unit ones that speak as
> well for reasonable prices from Cobalt Systems. I doubt if they make the
> hob
> bit but it is good to have spoken confirmation of what you are doing.

Does it tell you how much water is in it ?

If not I don't need to be told anything else,
the on off switch is obvious by feel and its
obvious when its heating by sound and
when its turned itself off when its hot enough.

[Peeler]

On Tue, 18 Apr 2023 02:54:30 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

<FLUSH the abnormal trolling senile cretin's latest trollshit unread>

--
MrTu...@down.the.farm about senile Rodent Speed:
"This is like having a conversation with someone with brain damage."
MID: <ps10v9$uo2$1...@gioia.aioe.org>

[ajh]

On 17/04/2023 11:24, Tim Lamb wrote:
>
> Our Quooker supplies hot water for saving induction hob cooking times as
> well as making tea and coffee.

You are just trying to make me jealous; it is still on my wish list. In
the meanwhile I boil water in kettles to do washing up as the hot water
takes 40seconds to run hot in the kitchen.

[ajh]

On 17/04/2023 01:04, me9 wrote:

> ventually I opened teh old one and discovered teh fault was an open circuit
> heat fuse located in the centre of the element. Replacd that at a cost of
> <£1 and now I have a spare induction hob.

I have opened it up and there only seem to be 3 thermistors in the
middle of the element , embedded in dried out heat conducting paste
which was stuck to the hob underside.

There is an open circuit 250V 12A fuse near the power cable inlet.

I wonder why that blew, we do have a high grid voltage here 247.7 currently.

[ajh]

On 19/04/2023 09:42, ajh wrote:
> On 17/04/2023 01:04, me9 wrote:
>> ventually I opened teh old one and discovered teh fault was an open
>> circuit
>> heat fuse located in the centre of the element. Replacd that at a cost of
>>   <£1 and now I have a spare induction hob.
>
>
> I have opened it up and there only seem to be 3 thermistors in the
> middle of the element , embedded in dried out heat conducting paste
> which was stuck to the hob underside.

I see now they are transistors of some sort, 2 with forward voltages of
1.6V and the other first reacts with 2.2V and then goes open circuit
within half a second

[Harry Bloomfield Esq]

On 19/04/2023 09:42, ajh wrote:

> There is an open circuit 250V 12A fuse near the power cable inlet.

Nothing to lose, replace it and see what happens when you switch it on?

[ajh]

True and I will do it but was just pondering why it may have blown.

[phister]

Overloaded, with the magnetic coupling material..?

[ajh]

I would be surprised if any of my pots could do that. Anyway I have de
soldered the blown fuse and ordered some replacements from china, I
suspect the fuse blowing was a symptom of a more serious fault but we
shall see.