Buzzing Thermostat

[thescullster]

Hi all

I have a Honeywell T6360B room stat controlling the fan on a Myson kick space heater.

After only a year of operation it has started buzzing for a good few seconds on each switching operation.

The fan rating is only 3A so should be well within the capacity of the stat.

Is this just a duffer, or am I missing something?

I thought this would be the simplest most reliable solution for the application. It seems to provide the control required, just makes a noise doing it!

Thanks

Phil

[Graham.]

There isn't anything in those that can buzz apart from the contacts arcing, and I imagine that is what's happening.

The contacts might have a tiny magnet incorporated to make the action more positive.

You may be able to clean and re-tension the contacts.

[meow2222]

If its bimetal, check thermostat contacts & cable screws.

NT

[Bob Minchin]

And the heating element wound around the bi-metal strip.

Bob

[thescullster]

Thanks guys

I'll check it out this weekend

Phil

[Rick Hughes]

Never really understood why they have a heating element ? ..... do you know why. Sort of expected Bimetallic strip would simply respond to the air temp, so why does it need heating ?

[Chris J Dixon]

Chris