 LED Gauge Bulbs on GEN light circuit |
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| nolift914 |
 Oct 4 2024, 03:03 PM
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Autoxer  Group: Members Posts: 186 Joined: 24-May 09 From: Rockaway Beach NY Member No.: 10,399 Region Association: None  |
Just wanted to say THANK YOU to all on 914WORLD this place is amazing.
I had an issue with my alternator not charging and the GEN light on. I had recently restored my dash gauges after reinstalling them and repairing some of the questionable wiring done by a PO. As always, I turned to 914WORLD for help! I read a thread on issues with GEN lights and realized my issue may not be the Alt after all, I had just installed NEW LED gauge bulbs. I switched the GEN light bulb back to the original Incandescent bulb and the ALT energized. problem solved. Using LED bulb on the GEN light circuit can cause issues with your charging system. |
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| davep |
Oct 5 2024, 03:12 PM
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914 Historian Group: Benefactors Posts: 5,220 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
Well, yes, an LED draws in the 20mA range, so too low. BUT, an LED is a diode that passes current in only one direction and that is a BIG no no.
You must use the original incandescent bulb as the alternator light! |
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| bkrantz |
Oct 6 2024, 07:01 PM
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914 Guru Group: Members Posts: 8,173 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains 
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QUOTE(davep @ Oct 5 2024, 03:12 PM)  Well, yes, an LED draws in the 20mA range, so too low. BUT, an LED is a diode that passes current in only one direction and that is a BIG no no. You must use the original incandescent bulb as the alternator light! Correct. The gen light is the only non-LED bulb in my car. |
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| ClayPerrine |
Oct 7 2024, 08:43 AM
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Life's been good to me so far..... Group: Admin Posts: 15,949 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(bkrantz @ Oct 6 2024, 08:01 PM) The gen light is the only non-LED bulb in my car. I can't say the same thing. I left the license plate lights as old incandescent bulbs. Makes it harder for the cops to read it. (IMG:style_emoticons/default/happy11.gif) |
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| worn |
Oct 7 2024, 05:12 PM
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#5
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can't remember Group: Members Posts: 3,372 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(ClayPerrine @ Oct 7 2024, 07:43 AM) QUOTE(bkrantz @ Oct 6 2024, 08:01 PM) The gen light is the only non-LED bulb in my car. I can't say the same thing. I left the license plate lights as old incandescent bulbs. Makes it harder for the cops to read it. (IMG:style_emoticons/default/happy11.gif) Oh, but surely they know who you are led or not! |
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Posts in this topic
nolift914 LED Gauge Bulbs on GEN light circuit Oct 4 2024, 03:03 PM
930cabman
Just wanted to say THANK YOU to all on 914WORLD t... Oct 4 2024, 04:23 PM
porschetub
Just wanted to say THANK YOU to all on 914WORLD ... Oct 5 2024, 02:15 PM emerygt350
The gen light is the only non-LED bulb in my car... Oct 7 2024, 02:37 PM bkrantz
The gen light is the only non-LED bulb in my car... Oct 7 2024, 07:12 PM emerygt350
[quote name='ClayPerrine' post='3171606' date='Oc... Oct 8 2024, 06:39 AM worn
Just wanted to say THANK YOU to all on 914WORLD t... Oct 7 2024, 05:11 PM |
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