Noisy Induction Hob

[jftshort]

Hi,

We have just had a De Dietrich induction hob installed. We had a little test last night to see if everything was in working order. We boiled one pan of water and were impressed with the speed etc...

We then used all four rings. The hob started to make loud clicking sounds and seems to pulsate the power from the front ring to the back ring; therefore the water wasn't being constantly heated.

Does anyone know if this is normal for this type of hob? Or do you think there might be a fault.

Really appreciate anyone's help / advice.

Thanks very much

Justin

[PeTe33]

Just as a guess, I would imagine the hob doesn't have the output to go to full power on all rings at the same time. After all, In a real cooking environment what are the chances of this ever happening?

On our Neff one there is a power boost which enables one of each pair of rings to take ALL the power for very rapid heating/boiling.

When you hit the "C" button for a ring it cycles power on and off to maintain desired temperature. I would think what is happening is normal for such a bizarre situation, but I would have thought a quick call/mail to their tech. dept. would put your mind at ease.

Don't forget, some pans also become quite "vocal" on an induction hob.

Cheers Pete

[Andrew Mawson]

clicking

[Jay Arr]

================================

I've had a Hotpoint Induction Hob for about three months. It is silent unless bleeping to tell me cooking time is up or I have left an item on top of the touch control panel etc etc. It does emit strange groaning noises if I try to heat too quickly such as turning the heat instantly to max AND switching on the boost control. So I have learned to be less impatient.

From what you say I reckon your hob is not performing correctly and I would take appropriate action under guarantee.

Incidentally, my wife dropped a heavy stainless steel salt mill on to the edge of our Hotpoint yesterday. It has "taken a bite" out of the glass edge like a bite out of an apple pie AND sent a crack across the glass cooker surface. Cost of new glass and fitting by a Hotpoint engineer is £300.

Jimmie in pain .....

>

[Grumps]

Check your insurance. Our covers ceramic hobs.

[PeTe33]

Still can't see it myself. what _exactly_ would you put in your 4 pots, all of which would require the same amount of time to cook that they needed to be switched on all at the same time but couldn't be put in the same pot.

I agree the chances of having every ring on at the same time is certainly not difficult to imagine, but once up to temp, power consumption is greatly reduced and cycles on and off.

Besides which, almost every kitchen has an oven (or 2) and a microwave.

I'm intrigued.

[Jay Arr]

===================================

Indeed I have done. I'm with Tesco Home Insurance and I am covered. Mind you, there IS a small matter of £100 excess.

Jimmie ... the pain is clearing

[Ian Stirling]

Is it possible that it's simply oversized slightly for the incoming rating? For example - if it's rated at 9.5Kw overall, and each ring can use 3Kw, then if you put all 4 rings on, it'd potientially blow fuses. So, it turns one ring on and off, to keep the power to the sticker amount.

[The Reid]

Following up to Pet @

;¬)

how about 4 frying pans for an urgent mixed grill?

I've got three ovens and no microwave but I don't use them to boil water.

[Guy King]

The message from "Andrew Mawson" contains these words:

I can't think of any. The only time it's happened here is when making Christmas puds.

[PeterK]

AKAIKhaving had two induction hobs the manfacturers split the 4 "rings" into two pairs with one ring in each pair having a boost facility. When the boost is engaged then the other ring in the pair will have its power setting reduced so that the total power consumption of the pair does not exceed both rings on "normal" full. The only noise I've ever heard from an induction hob is from the cooling fans of the "electronics".

There was a post a few weeks ago about connecting up a hob - my current hob could accept 2 or 3 phase 415v, single phase 240v, 3 phase 240v through the connecting/jumping the neutral, L1,L2,L3 connections. Could the hob have been incorrectly wired and still operate at the wrong "voltage"?

Peterk

[Wayne Boatwright]

On Thu 25 May 2006 08:54:26a, Thus Spake Zarathustra, or was it The Reid?

How urgent could it be?

I often use the microwave to bring small quantites of water to a quick boil. Beats the hell out of a pot on the stove.

[Owain]

Wouldn't an electric kettle be a lot easier? And quicker, unless you've got a 3kW microwave.

Owain

[GymRatZ]

what about a kettle?

[meow2222]

Tricks like this are common, they limit the max load and max appliance case temperature. Since the electronics costs real money in an induction hob, cost alone is justification enough to do this.

NT

[Ian Stirling]

More like 4-5Kw. My kettle is 2300W, microwaves are about 50% efficient. With newer kettles, you can easily boil half a cup in seconds.

[The Reid]

Following up to GymRatZ

that is indeed what I use for cups of tea, if I'm boiling food in pans I heat the water in the pans I'm going to cook the food in.

[The Reid]

Following up to Wayne Boatwright

don't you get hungry?

[The Reid]

Following up to PeterK

I wonder how long they will turn out to last? My last cooker went to cooker heaven through lack of a spare after 25 years.