Spotlight fuse keeps blowing????
Submitted: Sunday, Aug 17, 2003 at 14:11
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pilbaralad
Just fitted a pair of Hella 4000 to a new TD Prado about 5 days ago. Lights worked a treat for a few hours the other night. Went to use them again last night and after I showed the missus where the isolation switch was she switched it off and on again a few times to see the difference of light up the road. This had the effect of blowing the 30 amp fuse. I replaced the fuse, bang, blew straightaway again. The relay (hella 30 amp relay) is still working with high beam (can here it clicking with highbeam going on and off). Any suggestions as to what may be causing this problem?
Reply By: howesy - Sunday, Aug 17, 2003 at 16:30
Sunday, Aug 17, 2003 at 16:30
They are on the right track sunshine. Some lights can draw huge current and if the earth is average as
well then the resistance is huge and resistance causes heat and bang. I have seen cases where over time even the relays start to stick on because of the draw and heat factors.
Buy another relay and jumper from the other one for the earth and activation wires and give it it's own feed to the other light and it's own battery feed with fuse. A 20 amp fuse should be all you need with this set up and I promise you will never have another problem
AnswerID:
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Reply By: sean - Sunday, Aug 17, 2003 at 22:25
Sunday, Aug 17, 2003 at 22:25
I have 4000's and have never had any problem but L have just completely rewired the setup on my new car as the wiring it came with was poorly done.
The 4000's should be wired baack to the battery earth and the standard light harness is set for this with the 2 wires coming out of each light. The isolation switch should also be wired into the relay earth and not the power from the high beam if this is not the way it has been set up.
Sounds like you have a short in the power to the lights or possibly inside the light itself. Its easy to unplug each light so you should be able to isolate the problem.
Sean
AnswerID:
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