Electric fan fuse keeps blowing????'s

MrSony

Geezer
Nov 15, 2014
6,314
113
Des Moines, Iowa
Bigger fuse. But say if you have a 40 or 50 and it keeps blowing something is definitely wrong.
I've got my 4th gen f body fans wired full beans with a 30 amp and it's never blown.
 
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g0thiac

G-Body Guru
Sep 6, 2020
659
63
yeah im running a 30 amp fuse
Upgrade the fuse like others mentioned, if that don’t fix, then see if the connections aren’t shorting out.

If that is good, then the circuitry in the actual fans is pulling too much amperage, which you might as well replace the whole thing if that’s the case.
 

oldsmobile joe

Royal Smart Person
Nov 12, 2015
1,920
113
mpls
Okay ill try bigger fuse if that doesn't do it I'll try another mark VIII electric fan Thanks
Don't just throw in a bigger fuse. Yoi could melt the wires and cause a fire.

Use the same size fuse as the lincoln mark VIII calls for. If it blows, then check wiring. If wiring is ok, replace fan motor.
 

565bbchevy

Geezer
Aug 8, 2011
8,903
113
Michigan
You could be overloading your relay depending on the size, electric fans draw a lot of amps on start up.
 
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