We all know that when the resistor goes the blowers work on number 4 but no others. Well mine work on all but position 1. Still the resistor or summat else??

Cheers :)

 

could still be the resistor. The resistor has different segments to it which come into use with the different switch settings. speed 1 uses the longest part of resistor coil so if it's gone in the last bit then that could be it.  BUT normally it's not the resistor coil that goes, it is usually the thermal fuse (but into resistor pack) that goes which means you lose all speeds below 4 like you say.

Could be switch fault. could be wire/connector problem between switch and resistor. could be stiff bearings in the fan which means that on speed one it it not getting enough power power to overcome the stiffness (and if so and left on position 1 it will possibly blow the thermal fuse)

Cheers. ebay resistor be okay or should I go for a genuine one?

 

The same resistor is fitted in the Vauxhall Corsa,  Chap on Ebay sells the small resistor fitted to the top for pence complete with two squeeze connectors. no soldering needed.

does it look like this

http://www.ebay.co.uk/itm/Ford-Focus-MK2-2004-2015-Heater-Motor-Fan-Blower-Resistor-/331276505769?epid=1043769693&hash=item4d219e52a9:g:D1oAAMXQWzNSiZen

The part on the far right of picture is, as I understand it, the thermal fuse, not a resistor. It burns out if the heat from the resistor coils (green parts) get too hot - to prevent a fire

here is a better pic, zoom in on top of pic. You can see it says 192 degrees centigrade on it, showing it is a thermal fuse

http://www.ebay.co.uk/itm/New-Heater-Blower-Motor-Fan-Resistor-For-Ford-Focus-Galaxy-S-Max-Fiesta-Mondeo-/152621125931?epid=0&hash=item2388ed912b:g:q24AAOSwa~hZZd83