When I start my Multipus 2 (AC connected) I hear a short rattling sound. Is that normal ?

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question

castijn asked Jan 20, '23

Multiplus-II

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Answer 1 · 2023-01-20T10:52:57Z

wkirby answered · Jan 20, 2023 at 10:52 AM

There is a relay test sequence, each relay contact is tested in quick succession which would make a rattling sound.

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Answer 2 · 2023-01-20T10:53:08Z

seb71 answered · Jan 20, 2023 at 10:53 AM

There are some relays which are (self) tested by opening/closing them (and this makes a noise).

If there are no other issues or error messages, it is normal.

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castijn commented · Jan 20, 2023 at 11:09 AM

Thanks. Everything works fine

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Answer 3 · 2023-01-20T11:09:05Z

Craig Chamberlain answered · Jan 20, 2023 at 11:09 AM

It always reminds me of this scene from the classic movie Alien where the computer makes similar sounds. :)

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