Fuse blown

[crankedup]

The fuse recently blew, it was the 10A protecting the wiper motor. Used the wipers and all was fine, 10 minutes later on same journey and wipers failed thru blown fuse. Since replaced fuse and no problem. Is it possible the fuse had become old and brittle on my 6 year old car? If so should I replace all fuses.

[v8ian]

Fuses to Fatigue/work harden in a duty cycle of expansion and contraction, The old flat alluminium VW glowplug fuses are a Bug-er for this,

[bertelli_1]

It could indicate a mechanical fault, such as the linkage seizing & putting a large load on the motor. You weren't trying to clear a load of snow at the time were you?

[crankedup]

No extra strain on the wiper motor at all, normal useage. So it could just be an age thing, best get another pack or two of assorted fuses I guess. Wipers still operate OK so doubt if a electrical problem, thank goodness.

[C. Grimsley]

I would say its more than likely a sticky motor and at one point of the motor it is drawing to much current popping the fuse.

Carl

[crankedup]

Thanks for replies, wiper fuse still OK so far., so hope it was an one off.

[lenientism]

I think each type car has similar type of fuse to protect AC fan, I have the same fuse problem repeatedly blown off, which type is normally used for it? Currently it uses 15A after previously a mechanic gave it only 10A, although the fuse box said it's a 25A if not 30A.

[paintman]

Not unusual for old fuse to fail for no apparent reason.
Replace with a new one of the correct rating.
If the new fuse fails straight away then you start looking for problems.

[crankedup]

paintman said:

Not unusual for old fuse to fail for no apparent reason.
Replace with a new one of the correct rating.
If the new fuse fails straight away then you start looking for problems.

I now have a couple of packs assorted rated fuses, one just blown and waiting for the next one.