safrane blower

I own a 1994 Safrane 2.2 petrol. The only way I can stop the heater blower is by removing the fuse. I am told that the problem lies with a relay. Can anyone confirm this and tell me where the relay is? And also whether there is a non-Renault replacement I can use?
If anyone has a manual for these cars, or even just a wiring diagram, please let me know.

I'm affraid i won't be able to answer you. Ask your Renault's dealer.

Safrane Biturbo 270 hp (1993)

May I ask you if your Safrane is equipped with electronic climate control with nice backlit orange display and also if the blower runs at full blast or just some partial load? I think the problem might be inside that nice controller-bastard or in external relay. Trace the wire from blower and see where it goes to relay or that module. Relay might just stuck 'cause of weld-up contacts. In that case a good dent on it will cure the problem. Be careful though, don't overdo :D