Electric Kettle Spontaneous Switching On: Auto-Lock Failure, Safety Concerns, and Potential Causes

Hello, I have an unusual problem. We have a several-year-old electric kettle at work, which until now has worked flawlessly. On Sunday morning, I used it to make coffee, and then stood unused for the rest of the day. On Monday morning, a nervous colleague calls that I reportedly left a kettle, which was boiling all night and almost melted, causing a store fire. Let me cut my hand that I didn't turn it on, let alone at night. Please let me know if spontaneous startup is likely? Would the automatic lock not work in such a case? What is the likely reason for this launch? I would add that at the moment the kettle is supposedly working fine. I will give the name and model of the device in the near future when I am at work, because I do not remember.

I am asking for help, because I don't know if anyone is trying to make me crazy, do we have ghosts in the store? : /

First of all, the thermal switch should trip.
Since it really didn't work - at least once, it's a kettle to be replaced, otherwise it may cause a fire the next time it gets stuck.

The question is not whether it will stop, because once it happened it will certainly happen again - only when.

Secondly, somehow I do not believe that for 24 hours the water boiled and did not boil until the end, and if it boiled, that the kettle came out unscathed.

Lilith6y wrote:

What is the likely reason for this uruination?

I had a kettle in which there was an episode that did not turn off the heater despite the "bounce" button after boiling. The reason was a slight deformation of the switch body from heat released by probably already worn out contacts. And the contact just hooked on the plastic and was turned on, so that it was enough to scrape it lightly with a knife and work. But still after this episode was already uncertain, so that I use a different one.
After that, a kettle fire is unlikely (unless exceptional trash outside the standards), because today there are two thermostats in kettles. One works on hot steam, and the other on overheating the hot plate over 100 degrees. And often the latter, as it works, it is necessary to manually reset, whether by sticking something in the appropriate hole, or lifting and putting it on the stand.
So if the kettle after a good few hours (long enough to boil water) was still hot, it is immediately suitable for the trash and the brand and model should be handled from afar.

Thank you for the answers, but the most important thing for me is:

Can such a kettle turn on itself?

I suppose it happened in the morning, shortly before a friend came. Before, we had never "caught" him at such an offense and he probably always managed to cool down. The kettle is of the older type, "Filipek", without a spiral heater.

The kettle can turn itself on We have a lot of Eldom kettles at work and there often happens that the plastic lever breaks in the switch and despite switching off the switch the kettle continues to heat because the contact is still physically connected. As for security should work, but also at work it happened that the knocks that were to disconnect welded and did not disconnect. It also happens that the plastic pin which is to melt in the absence of water will melt but will be blurred on both sides and will not disconnect the contacts. With cordless kettles you must be careful not to leave even water on the hob.

Lilith6y wrote:

Can such a kettle turn on itself?

I suppose it happened in the morning, shortly before a friend came.

Simple calculation.
If we assume that the kettle has 1000W and it contained 1l (1kg) of water, 2257000 joules of energy are needed for complete evaporation (heat of water evaporation at 100 ° C, from tables). The heater delivers 1000 joules per second, which gives 2257s or approx. 38 minutes.
If the protection did not work, e.g. for reasons mentioned above by a colleague from Jaworski, there is no chance that after a few hours of operation of a kilowatt heater in a dry kettle, there was no total melting of plastic parts and irreversible destruction (at least).
The first conclusion that comes to mind is that the kettle could not heat several hours non-stop.
So it is possible that the heater was turned on within a few minutes before detecting the anomaly, or that the kettle was protected for some unknown reasons, but it turned on the kettle again after the protection was activated.
And as far as I remember, even archaic twentieth-century Polish teapots (ceramic ones with a spiral heater) required resetting after activation by plugging something pointed into the hole.
So, in any case, in my opinion, this kettle should be withdrawn (especially since it has served) because it is simply dangerous and buy something newer, which gives more confidence even taking into account the "human factor" and various tangles of events.

Thank you very much for the comprehensive information.

The Sencor 1590SS kettle turns on automatically.
Temperature control does not work.
On the motherboard there is an HR7P156P4S and LN8K06 smd IC and a 7805 voltage stabilizer.
Can anyone help and help?