Hi all,
right have this niggling problem with my fan not kicking in....

Car is a Ford Escort 1.8 16v zetec with air con

things done:

changed all three switches related to cooling, i.e temp sensor, rad switch and engine coolant sensor
also flushed the old coolant out and refilled with new coolant 50/50 ratio

It only has single fan
Fan comes on if I put aircon on
BUT
does not when it starts to overheat

have checked fuses and the big fuse near battery all fine...?

please any help much appreciated