First post. Please be gentle.

I'm replacing a Punto Vortice M90 extractor fan with another Punto Vortice M90 extractor fan. When I switched off the electrics and unscrewed the cover, I noticed the old fan has a board that the new one doesn't. I assume this is because the old one had a timer. We don't need a timer on the new one, and there's no board on it.

The wiring from the ceiling has a live and a neutral wire which were connected to the old unit via a connector strip, and a red wire, which isn't connected to anything. I assume this is the earth (it has no bare wire exposed). All the new unit has is two black wires, both of which are inserted into a connector strip. Does it matter which black wire connects with the live wire, and which the neutral, via the connector strip?

Photos of old and new fan:

Hi Sir_Hamster and To UHM.

Forum etiquette requires that we do not Hi-jack other users threads, so I have created a new shiny, spanking new thread of your own.

My apologies.

As there are no markings on the fan unit one would assume that either way round would do....unless the instructions that come with it state otherwise.

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Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

That's what I thought. One would assume the instructions would make that very clear ...

Thanks!