Where does air come from in a sealed heating system?
Tim Lamb wrote:
I had a quick look at our *noisiest kettle in the world* and found a
tiny plastic plunger inside the coax assembly which presumably isolates
the contacts and backs up the paddle switch.
I waved a non-contact tester near mine and it lit-up from the centre of
the socket, maybe you could test with a paper clip :-)
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