Re: 2003 HSE Internal fan running when ignition is off.
Hi mate, and welcome to the forum. You need to replace the HVAC final resistor, it's about 40 quid off eBay, they are a very common fault on these cars, I had to replace mine, download a copy of the RAVE from the green oval and it's got the instructions on how to replace the resistor. If you do a search on here there is loads on the issue, people call it the hedgehog because the component that you have to replace looks like a hedgehog.
Hope it helps