Thread: Fuse no 8 keeps blowing?

For some strange reason, I keep blowing fuse no 8 under the dash of my Disco.
Its the one that does the interior dash lights, some rear lights.
Its usually a 10 amp fuse and I in my infinate wisdom replaced it with a 15 amp and still blows, so of course I ran out of 15's and put a 20 in and yet again it went.
It's not immediate but after roughly 4-8 weeks.
Sometimes lights are fine for ages and than they go justout of the blue.

Any-one had such experiences or better still an explanation.
The previous owner had told me about it and had it looked at but no-one could find the problem.

Cheers

Trick time: If you can't isolate the fault, wire a 100-130 watt halogen globe across where the fuse is supposed to go. Then when your fault occurs you get this huge indicator telling you so. Enough current passes through the cool globe to run a few little globes without trouble. Short circuit it and it only goes to 10 amps.