Thank you for all your help. I'll try that so over and out, (for now).
Make sure your fan rotates easily too. I had a similar problem with the fan in a Micra. It would keep burning out the fusible link on the resistor pack. I resoldered it several times. In the end I found the fan was stiff. Cleaning out the brushes and a drop of solvent followed by some WD40 made it spin much better and solved the problem.
Security system should not fail safe!
Security system should fail dangerous!
Thank you all for help. My resistor unit was above the fan and motor in the ducting. I removed the motor and fan and could see the resistor pack up in the housing where the fan is housed. There was no need to remove fan and motor as the resistor fits in a separate slot. Replacement part available from Citroen for €29. Simple job. Thanks.
The following 1 user says Thank You to Peadar for this post:1 user says Thank You to Peadar for this post