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05-27-2012, 03:53 AM
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#1
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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headlights
hi all,
today while michael day was putting my bathroom back together i worked on rewiring my headlights and installing new headlights.
i ran new 12g power and ground to each headlight. newell had run a single wire and then split it to go to each headlight. and one 30amp breaker powering both bright and dim.
i decided to do it different.
after i had it rewired and michael confirmed that it was done correctly, i tried it and it would trip the 30a resettable breaker. i spent hours tracing wires and couldnt find any issue.
i put it back to the original config and it still tripped the breaker.
for some reason i decided to try a different relay. and it worked. ended up that the dual 87 tyco relays i got from a headlight guru online had diodes in them and for some reason my coach really didnt like diodes in the relays. i tried several of the same relay with the same result.
so, now i need to rewire it back to the way i want and use a non diode relay.
live and learn.
tom
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05-27-2012, 08:11 PM
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#2
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New Member
Join Date: Dec 2011
Posts: 5
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If the diodes were across the coil, there were to suppress the voltage spike when the coils were de-energized. If true, you likely had the polarity reversed on the coils and the diodes were forward biased.
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05-27-2012, 08:56 PM
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#3
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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michael and i are chuckling because we thought that too. i reversed the coil wires and it still did it. put the old relays in and still did it.
i have stopped trying to figure out why and will just work with it the way it works.
thanks for commenting
tom
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