Headlight fuse - repeated failure

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foggyjames
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Headlight fuse - repeated failure

Post by foggyjames »

Any ideas? I can't see an obvious short, and despite having studied electronics (to an extent) I can't think of anything else that would cause this failure. It seems to be a standard wattage bulb.

Any thoughts?

cheers

James
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Chris_C
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Post by Chris_C »

Does the fuse cover high beams? Other than that, listen if the relay is arcing more than usual
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340GLT
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Post by 340GLT »

Yeh i was going to say switch the relay.
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foggyjames
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Post by foggyjames »

Same fuse...I think it is....why? You sound like you have a cunning plan hatching ;)

Relay...interesting thought...I'll pull a spare at the scrappers tomorrow. I'm guessing it's in the fusebox? (Will check tomorrow).

It blew after they had been on for about 10 seconds, suggesting mild continuous overcurrent to me. I might pull a couple of spare H4 bulbs too, just in case some cheeky tyke has dropped a 100w set in there.

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...
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