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h&jeuropa
Joined: 07 Nov 2006
Posts: 645
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 Posted: Thu Apr 24, 2014 11:59 am Post subject: Blinking Charge Light |
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Our electrical system has worked without a problem for 500 hours and 5 years. Recently the charge lite has begun to blink on and off while in flight. It is still on solid at low rpm or engine off and gets dimmer and finally goes off as the rpm is increased (around 3000 rpm). But during cruise at 5000 rpm, it blinks off and on. And this behavior seems a little intermittent. First noticed it 2 flights ago. The next flight was fine and today it was fine for the first half of the flight and then blinked the last half.
Yet the engine monitor shows the voltage constant at 13.2 volts and current into the battery varying between 2 and 4 amps. These are the same as have been for years.
Any ideas or suggestions?
Jim & Heather
Europa XS 914
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Fri Apr 25, 2014 12:13 am Post subject: Blinking Charge Light |
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Hi,
I had the very same problem, the light blinking from time to time, in spite of the voltage being ok. I checked all connections very carefully and improved the grounding of the Ducati regulator. This did not solve the problem, so I bought a new regulator to be carried in the aircraft as a spare and lived with that problem for about one year. Then I decided to get rid of it: I disconnected the warning light from the Ducati regulator and installed a separate high/low voltage monitor (BC207-1 from B&C) to activate the light. This was one year ago and I am still using the same regulator today. The bus voltage is still right were it should be in all conditions. I thing the false warning problem was coming from the regulator internal charge sensing circuitry which obviously is not working properly. My regulator now has 900 hours total and 250 hours since the intermittent warning first appeared.
Remi Guerner
F-PGKL, XS Monowheel, 912ULS, 1100 hours
<<<<<<<<<Our electrical system has worked without a problem for 500 hours and 5 years. Recently
the charge lite has begun to blink on and off while in flight. It is still
on solid at low rpm or engine off and gets dimmer and finally goes off as
the rpm is increased (around 3000 rpm). But during cruise at 5000 rpm, it blinks
off and on. And this behavior seems a little intermittent. First noticed it
2 flights ago. The next flight was fine and today it was fine for the first
half of the flight and then blinked the last half.
Yet the engine monitor shows the voltage constant at 13.2 volts and current into
the battery varying between 2 and 4 amps. These are the same as have been for
years.
Any ideas or suggestions?
Jim & Heather >>>>>>>>>>>>>>>>>>
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h&jeuropa
Joined: 07 Nov 2006
Posts: 645
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| Posted: Tue Apr 29, 2014 11:44 am Post subject: Re: Blinking Charge Light |
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Problem solved! Pulled each fast-on terminal off the regulator and pushed it back on again, cleaning the contact. Also cleaned the ground connection. All is well. Thanks for the suggestions.
Jim & Heather
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Tue Apr 29, 2014 11:38 pm Post subject: Re: Blinking Charge Light |
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Jim,
Having been there, I hope you are right, but the problem with such an intermittent failure is that it happens randomly and therefore is difficult to diagnose. So I am afraid you could not tell the problem solved until you have done about 10 flights/10 hours. Please let us know the results.
Remi
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