Fuses keep popping Grrr

Hello to all.
Today I attempted to replace my faulty headlamp.
Front passenger side.
I managed to replace ok but whenever I try to flick on my main beam a fuse just pops( This is fuse no13 which is the second fuse along bottom row in the fuse box) I have tried 7.5amp fuses & also 10amp but they both go pop.
When you replace the fuse the lights work for a short period but not properly, when you flick the main light switch to the centre position only the sidelamps come on but not the dim dip headlights & when you flick the main switch away from you the side & headlamps come on, this only lasts for a short time, when the fuse blows the drivers side headlamp functions in the proper manner, ie when the main switch is in the centre position the sidelamp & dimdip headlamps work.
The full beam still works though?!?
You can do a headlamp flash & switch to full beam (resulting in blinding people)
Anyone help?

got a short there matey follow the wres back from the bulb look where it goes through panel holes, my disco somene put 100+ watt bulbs in it and cooked the loom I had to rewire it and replace the switch...silly question iff you disconect the bulbs does it still blow the fuse? have you checked the bulb with a meter? they can be faulty... good luck feller.

Hi
I tried different sets of headlamps with the same results, I didnt try throwing any switches with no headlamps in.
When you say check the wiring will there be some kind of break somewhere causing it to short?
Cheers

mrback said:

Hi
I tried different sets of headlamps with the same results, I didnt try throwing any switches with no headlamps in.
When you say check the wiring will there be some kind of break somewhere causing it to short?
Cheers

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Yep.
We had this prob on the ex-mod 90, turned out to be full of mice.

35"boots said:

Yep.
We had this prob on the ex-mod 90, turned out to be full of mice.

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You are taking the michael here surely

Off to an auto electrician in the morn to try & sort.

There not that uncommon realy!!

mmm! a thatched bulkhead. is it warm in winter? and whats the part number?

Well it seems that there was a break in a wire causing it to short, all sorted now but I think the beam needs adjustment as one side looks dimmer than the other but I'm sure it just needs tweaking.
Also a small thing which I have noticed happening is the hazard light comes on momentarily when using the indicators(on the dash) Is this normal?

and whats the part number?

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1HAT3M1C352P13C35.