My old extractor fan (installed by the bathroom fitter eight years ago) has packed up so I've bought a replacement. Both original and replacement have humidity adjuster and timer, so both require three wire connection. With all the wiring in the background already done, I'd assumed wiring up the new fan would be straightforward. In the old terminal block pictured, the brown wire connects to red, black to black, and grey to yellow. The new fan (pictured) has a black neutral wire, yellow switched live, and orange permanent live.
If I look online at how to wire the new fan, I get a different configuration to if I try to replicate the colours in the old fan.
Any thoughts on what I should do?
Many thanks.