Bosch hob buzzing loudly with a pan on
I've got a Bosch hob that's 3 years old and it makes a loud buzzing/humming noise when a pan is on it. Has anyone had the same and managed to sort it?
1 Answer
A loud buzz or hum from an induction hob with a pan on it is quite often related to the pan itself or the power level being used, rather than a fault with the hob. That said, it’s worth narrowing it down properly.
1. Try a different pan Use a good quality magnetic pan with a flat base. Induction hobs can make pans vibrate, especially thinner or layered bases, which then sounds like the hob is buzzing. If one pan is much worse than another, the pan is the likely cause.
2. Test different rings and power settings See if the noise happens on all zones or only one. Also try low, medium and high power. Induction hobs often hum more at higher settings, and some pulse the power at lower settings which can also cause audible buzzing.
3. Check pan size and positioning Make sure the pan is centred properly and is a suitable size for the zone. A poorly matched pan can increase noise and reduce efficient heating.
4. Listen for cooling fan noise These hobs do have internal cooling fans, and some fan noise is normal. If the sound is more of a mechanical rattle, harsh buzzing, or has suddenly become much louder than it used to be, that points more towards a developing fault.
5. If it’s on every pan and every zone If the noise is excessive across all zones with several pans, it could be an internal component, coil mounting, or fan issue. Isolate the appliance from the mains before inspecting any internal parts, but in practice this is one for a qualified engineer, as it involves mains electrical parts.
If you can say whether it’s all pans or just one, and whether it’s all zones, that would help narrow it down.
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