cooling fan issue again

I have had the car a month now and when i purchased it from the dealer it had to go back for a fan issue,basically they put another fan on the car from a donor car as it was not working,after that the fan worked as i checked it with engine running,however today the red beep warning light came on and i have since found that the fan is not working again,i am not great with electrics either ,i have had the car idling untill it hit three bars and left it ,and the fan did not come on ,i had it running for over 15mins.Any help would be apreciated as this is becoming a nightmare and i just dont want this to overheat on me.Thanks

Hi den9112, how are you getting on with your C3 cooling system?

Hi, I had that much hassle with it I decided to sell,i tried everything with the car ,one thing I will say is that the correct thermostat for your car is important on when it opens as that causes a lot of cooling issues, me I gave up and sold the car as I just didn't trust it in hot weather,sorry I cant help any further

No problem. Thank you for the info about the thermostat and the update.