hi all, anyone any idea's why my cossie keeps blowing the fuse when the fans come on.........
the fuse location in fusebox is all melted, is there a cure or will i need to run new fused wire direct from the battery
all comments ideas greatly received

 

is there a cure or will i need to run new fused wire direct from the battery

thats a common repair and also put a relay in line due to the switch o/heating

 

VERY common

My fuse melted in the box!

I completely rewired the whole circuit with individual relays, fuses and put a manual override in to.

No problems anymore

 

good answers chap much appreciation, anyone any ideas why this happens? surely ford wouldn't underwire the system would they?

 

I think they make a mistake
I also had to rebuild a new circuit; in fact two: one for each fan
Most the rs and 4x2 I could see have this problem or are going to have it. I think it's because the fan's motors need more amp when they take age.
My english is really bad

 

so the answer looks to be rewire the system.....
does a live feed from the battery to a fused relay switched by the fan control swith sound a suitable cure

 

THATS what/how I done mine my m8 put an o/ride switch inside his car also

 

thats un lucky mate hope u get it sorted

 

Here is a drawing of how you should re-wire it mate.

Exactly how mine, and many others are and they work fine

Click on the picture for a bigger copy

 

glurbs,

good answer mate, and your english is perfectly understandable. it takes a lot of courage and effort to use a forum in another langage, and appreciate people like you doing it. it makes the community a better place if we have more nationalities and cultures contributing to it.

i think that you're right too. the std wiring does seem to be on the limit with new fans in good condition. when they get old, the bearings get noisy and require more power (current) to drive the fans, and this is what causes the fuse box to melt.

a cure is to rewire the circuit as already shown, and maybe fit more efficient fans that provide the same airflow capabilities using less power input.

 

Thank you foreigneRS

 

great answers fellas will print diagram and rewire them today and let you know how it goes. thanks alot.

 

rewired fans last weekend as per above diagram they now work a treat.
thanks to all who gave input much appreciated.

 

surely the problem occurs by people sticking a larger fuse in there because it blew?

i'd imagine if ford used 10A wiring there'd be a 10A fuse?

folk get pissed off with it blowing and stick a 15a one in and its fine for a bit

then it gets a bit more worn then a 20a one goes in

etc untill the wiring melts?

the relay is the cure but the fuse is there to protect the wiring so i cant see why it would melt assuming no-one ghetto upgraded it

 

[quote="Aragorn-"]surely the problem occurs by people sticking a larger fuse in there because it blew?

i'd imagine if ford used 10A wiring there'd be a 10A fuse?

folk get pissed off with it blowing and stick a 15a one in and its fine for a bit

then it gets a bit more worn then a 20a one goes in

etc untill the wiring melts?

FORD used a 30amp fuse from factory problem arises due to old connections into the fuse box and wiring getting tooooo hot due to being badly earthed etc

 

i cut the wiers behind the box put in a new fuse holder works perfect but would the overide switch still work on the original wireing also can a lower temp fan switch be used if so wat type cheers jay