buzzing noise

[fire alarm guy]

Hi folks. Can anyone please tell me why, when i flick circuit breaker to on for my storage heater timer, I get an annoying buzzing noise. There is nothing loose in the consumer unit.

 

[DanBrown]

Sometimes when you get a 'buzzing noise' coming from the breaker, it could be an indication that the breaker may be overloaded slightly.

What breaker is the storage heater on, and what is the power rating??

 

[salisbury spark]

Ive had it on a lighting circuit(6 amp mcb) -loud vibrating/buzz. Im going to swap it out as i can only see a vibration as a cause of heat in future. The mcb was under hardly any load. Its a new fault to me so cant explain why....

 

[fire alarm guy]

The breaker is a B6. It only switches the timer on. I have two storage heaters. One is 2.5kw, the other is 3.5kw. Thanks for help by the way.

 

[Had8Lives]

Does the timer supply a contactor? Could be the contactor is getting noisy and needs replacing.

 

[fire alarm guy]

yes the timer does supply the contacter. problem solved i hope. thanks