Generator Light On, Generator Operating Normally

Jim Vogel

Member
Any ideas of why a generator light on a 3000 would be on when the charging system is working perfectly?
Thanks,
Jim
 
(quoted from post at 15:21:00 06/22/17) Any ideas of why a generator light on a 3000 would be on when the charging system is working perfectly?
Thanks,
Jim
cylinder? Does oil pressure, fuel, temperature light/gauges all work?
 
To some of us, there is a particular irony in that headline.....
The question is... does the system make 14V when it's running? It's actually a pretty normal thing for the light to be on.... and it not be charging.
THe only explanation I could give you for the light being on and the system charging properly is that someone has wired the light out of the circuit, which would be odd.

Rod
 
(quoted from post at 20:26:32 06/22/17)
(quoted from post at 15:21:00 06/22/17) Any ideas of why a generator light on a 3000 would be on when the charging system is working perfectly?
Thanks,
Jim
cylinder? Does oil pressure, fuel, temperature light/gauges all work?

Yes, everything else works properly.
 
(quoted from post at 17:51:58 06/22/17)
(quoted from post at 20:26:32 06/22/17)
(quoted from post at 15:21:00 06/22/17) Any ideas of why a generator light on a 3000 would be on when the charging system is working perfectly?
Thanks,
Jim
cylinder? Does oil pressure, fuel, temperature light/gauges all work?

Yes, everything else works properly.
t is a long shot, but check the 3 amp fuse.
 
I had exactly the same thing happen to my generator light on the dash of my 2000. The generator
light should not be on when it is running, otherwise how the heck would you know the generator is
operating properly. And I did not re-wire anything, and it was working properly for the last 15
years. Suddenly, the light is on. I checked out all the wiring, and nothing was broken or worn. I
took out the bulb, drilled a 2" hold in the dash, and hooded up a new ammeter. As I suspected,
everything was working properly. I have no idea why the generator light suddenly went crazy.
 
Have been using this stuff on electrical contacts for years, It really helps with corroded connectors and does exactly what it is advertised to do in preventing further corrosion.

BullFrog Electronic Cleaner & Corrosion Blocker.

https://www.amazon.com/Electronic-High-Performance-Technology-distortion-reliability/dp/B00WTH5ND6

One of my previous ride photo customers started using this on the cables that controlled the sensors on a carnival thrill ride and it reduced his down time by about 50%.

Not associated in any way, discovered this stuff when I was with Motorola and have been using it on just about everything that may get wet.
 
(quoted from post at 17:51:58 06/22/17)
(quoted from post at 20:26:32 06/22/17)
(quoted from post at 15:21:00 06/22/17) Any ideas of why a generator light on a 3000 would be on when the charging system is working perfectly?
Thanks,
Jim
cylinder? Does oil pressure, fuel, temperature light/gauges all work?

Yes, everything else works properly.
he diagram as colored, can be viewed in at least two ways, when ign sw on & cut out contacts of the VR are closed, thus connecting Batt to ARM (dynamo to the Brits), then 1) the warning light has a direct short across it via the wiring & the cutout contacts & Ign sw contacts, so no voltage/current to light the bulb (note that WL and D terminals on VR are common inside VR). 2) All those same wires & contacts function to place the [u:6aeedb917b]same[/u:6aeedb917b] 12 volts on both bulb terminals, thus no voltage difference, no illumination.
 
I've been using this stuff for years, something I think Dell recommended way back, called CORROSION X. It is used in the aircraft industry and I use it on all my tractors, hit the electrical contacts after I work on them and every now and then an insurance dose...


th

Tim Daley(MI)
Corrosion X
 



When the key is on, tractor not running, the light has 12 volts from the key, and see's a ground through the generator armature, so it lights up... when running and the armature comes up to voltage, the light has 12 volts on both sides, so it does not light up.

SO..
 
(quoted from post at 10:14:32 06/25/17)


When the key is on, tractor not running, the light has 12 volts from the key, and see's a ground through the generator armature, so it lights up... when running and the armature comes up to voltage, the light has 12 volts on both sides, so it does not light up.

SO..
F it is as he said, he needs a lot more than 'how it is supposed to work'. i.e., an understanding of the circuitry so that maybe he will see where the problem is that allows perfectly functional charging, but light still on.
 
So that would make it seem that if the light is on, the generator isn't charging, right? Except it is charging just fine. I know this is one of those
problems where it's easy to think that the poster has something wrong, as the problem appears to be something that can't happen under the
circumstances described. I'm pretty capable as a mechanic, although I'll readily admit that electrical isn't one of my strengths. My point I guess
is that questions about a problem that doesn't make sense are the only ones I ask here, because I can usually figure out a problem on my own.
So please assume that the problem is as I have described, and I am all ears about a solution. Thanks to everyone for the responses!
 
(quoted from post at 09:49:38 06/26/17) So that would make it seem that if the light is on, the generator isn't charging, right? Except it is charging just fine. I know this is one of those
problems where it's easy to think that the poster has something wrong, as the problem appears to be something that can't happen under the
circumstances described. I'm pretty capable as a mechanic, although I'll readily admit that electrical isn't one of my strengths. My point I guess
is that questions about a problem that doesn't make sense are the only ones I ask here, because I can usually figure out a problem on my own.
So please assume that the problem is as I have described, and I am all ears about a solution. Thanks to everyone for the responses!
ow about the fuse that I asked about a day or two back?
 
No offense intended here but I only see you insisting that it is charging properly... HOW are you determining that? Please be specific as to what you tested and what values you measured. As you said electrical is not your strongest subject, so you could very well be missing something obvious, such as the charge voltage should be around 14V. Many people think that a measured 12V means the charging system is working.
 
I tested it using the test method in the factory manual. It has also been operating for a month this way and the battery is still fully charged. No
offense taken, but I hope you will also not be offended when I say that I didn't ask how to test it. I already know that, and thought I had made it
clear. My apologies if I didn't.
 
No offense taken, but please don't take offense when my reply is that my question wasn't about how to test it, as I already knew how to do that.
I didn't insist it was charging correctly, I stated it as information related to the question, and as something that should be taken as just that. But
since you seem to not believe me, I tested it using the test method in the factory manual. It has also been operating for a month this way and
the battery is still fully charged.
 
It was said on another post as to fuse location, " it's behind the cluster tied to the wire bundle. Bear to get to and get the fuse out. They didn't leave enough free wire to easily remove the fuse."
 

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