ccity88 Posted September 16 Share Posted September 16 A couple of weeks back I came off the motorway and went into heavy traffic, only for my fiesta to get a temp warning light. Lo and behold, the main cooling fan stopped working completely, it didn't switch on at all. So I proceeded to change the main fan relay and fuse. This seemed to have revived the fan, although it did rattle quite a bit. I thought all was well until I took it for a test drive. I noticed a burning smell, so I pulled over to investigate and found that the wires to the fan were literally burning. Upon further investigation, I found the new fuse I put in, rated for 40 amps (green just like the old blown fuse) had warped and burnt completely in its housing in the fuse box. I've replaced it with a new one and the fan refuses to come alive, I've changed the relay too just to be sure but the fan still won't play ball. Could I have somehow damaged the fuse box? Or should I replace the main cooling fan before I check if it's a fuse box issue. The metal contacts inside the housing seem to have burnt, though I can't be sure. Any advice appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
agraham Posted September 17 Share Posted September 17 Sounds like the fan had a partial short circuit and was pulling too much current and is now open circuit and dead. You will need to try a new fan after cleaning all the contacts as best you can, and maybe the wires to the fan need replacing if the insulation is burnt. Quote Link to comment Share on other sites More sharing options...
Danny cj Posted September 17 Share Posted September 17 Ditto to Abraham I would investigate and check all wires and replace before putting in a new fuse.. Sounds like the fan is damaged from getting to hot or binding and shorted the wires Quote Link to comment Share on other sites More sharing options...
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