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High voltage warning

by Scot Chapman in General Tech Discussion 3 weeks ago

I was doing a run up and hit around 4000 rpm , engine started running rough and I got a high voltage warning

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Re: High voltage warning

by Rotax-Owner » 3 weeks ago

Rotax-Owner

13 754 2.39k

What engine are we talking about here?

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Re: High voltage warning

by Scot Chapman » 3 weeks ago

Scot Chapman

1 4 5

Rotax 912uls

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Re: High voltage warning

by Rotax Wizard » 3 weeks ago

Rotax Wizard

2 1.15k 4.94k

Hi Scot

the 912ULS has a single phase generator with alternator. This should limit voltage to 13.7 to 14.2 or about that. If you see more voltage than this then it suggests a failure of your ground or regulator in the system. See the maintenance manual heavy for the testing values and wiring suggestions for the charging system.

Cheers

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Re: High voltage warning

by Rotax Wizard » 3 weeks ago

Rotax Wizard

2 1.15k 4.94k

Scot, just to rephrase that a bit. It is a generator that has AC current that is limited by an external regulator to control the output voltage.

Cheers

42109_2_regulator 912ULS.jpg (You do not have access to download this file.)

42109_2_reg info.jpg (You do not have access to download this file.)

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Re: High voltage warning

by Scot Chapman » 3 weeks ago

Scot Chapman

1 4 5

Thank you so much.

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