checked fuse layout in owners manual - only found 2 possibles - F2 in pass comp.- 5 amp
& number 18 in engine comp. a 40 amp - neither are blown - checking in Haynes, am I looking at replacing blower motor / blower motor control module or any other (pref. easier) things I've missed ?
Quick check, with engine running and blower set to full speed, reach behind the passenger side carpet under the glovebox and look for some thick wires going into a green connector. Not easy to see as its tucked away a bit. Give these wires/connectors a wiggle and see if the fan comes to life.
If so then an eBay search for the above will get you a replacement for around £25, its held in by a 6mm bolt.
If no joy then there is a possibility you have a fault with the ignition barrel, which is less common but not unheard of.
2003 2.2hdi estate - mine 1998 Volvo 940 auto estate - also mine 2019 Citroen C3 something - the wife's PP2000 user, can help with faults / diagnostics in the Bournemouth area.
Usually poor or loose connections but have a play with the blower first.
I have a working D8 complete blower if you're near TF3 but won't fit a D9. Post your model in your SIG as it helps for future advice.
5 minute job to remove a blower motor on these so don't worry about it being a big job.
1996 1.9 TD LX (Gone but not forgotten)
2003 2.2 HDI SE