My induction hob, when in use for several minutes on high heat is producing a very heavy plastic smell. The hob is working properly besides this smell.

I opened the back of the hob and noticed this white paste that melted, it seems that this is what is causing the smell - what can it be?

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  • \$\begingroup\$ Check wires, smell may come from burned insulation. \$\endgroup\$ – user263983 Feb 17 at 19:12
  • \$\begingroup\$ I added another pictures, wires were all fine \$\endgroup\$ – John Feb 17 at 19:17
  • \$\begingroup\$ Device can not be used without pot or something else on working surface. And it should be ferromagnetic. Overview it is overheating. Normally stove has overheating protection. \$\endgroup\$ – user263983 Feb 17 at 19:27
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    \$\begingroup\$ If it's brand new it MAY be normal and go away in a few days. But as Tony suggests, run each hob (boil a pan of water) in turn and see if they are all the same. \$\endgroup\$ – Brian Drummond Feb 17 at 20:18
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    \$\begingroup\$ With respect, if you are unaware that thermal paste is a thing, you are clearly not qualified to be poking around in this thing. That's E-tech 101 stuff. You don't know what you're looking at and you can seriously get hurt, or worse you get somebody else hurt (i.e. if a fire occurs). Even if you find the 'bad part', you're not in a position to know it's really a 'bad part', or if something else failed which in turn caused the part in question to overheat. (That's a very common scenario in electronics). Strongly suggest you send this to the manufacturer for repair or just get a new one. \$\endgroup\$ – Kyle B Feb 17 at 22:37

The white paste is normal. It's heatsink compound that is used to help the transfer of heat from that active semiconductor device to the large heat sink.

As far as your smell? It's not possible to tell from the information given.

Now it is possible that the device itself it getting too hot and since it's encased in plastic, that might be your cause.

  • \$\begingroup\$ The smell is intense, I had to open all windows for an hour to get rid of it, smell like plastic, I added one more picture \$\endgroup\$ – John Feb 17 at 19:18
  • \$\begingroup\$ Clearly there is something wrong. A burning smell is not normal. \$\endgroup\$ – jwh20 Feb 17 at 19:23
  • \$\begingroup\$ Is that expected for this white paste to be liquid? \$\endgroup\$ – John Feb 17 at 19:23
  • \$\begingroup\$ @No, white paste should not be liquid. It is silicone based. \$\endgroup\$ – user263983 Feb 17 at 19:29
  • \$\begingroup\$ Ok that’s an indicator, I could remove it (it was a tiny bit sticky) \$\endgroup\$ – John Feb 17 at 19:31

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