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Old 11-02-2022, 08:01 AM   #1
FrankH
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Electric Issues - 2020 Keystone Cougar 24 RDS

Electrical Questions , 2020 Keystone cougar 24RDS . Shore power takes 3 minutes to connect . But when I plug into 4500 cummins onan - Nothing ! Is there something I'm missing for getting power from generator ? My retro was just start and plug -Keystone not so much .
please share your thoughts .
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Old 11-02-2022, 08:14 AM   #2
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I don’t have an generator; however, have seen some past posts where they had a switch to change to generator power.
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Old 11-02-2022, 08:56 AM   #3
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Have a 2018 laredo 330RL that I regularly run with a 3K Honda . Just plug in and good. Check the breaker on your jenny
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Old 11-02-2022, 09:00 AM   #4
firestation12
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One thought is that you may have EMS installed somewhere between the shore power receptacle and the circuit breaker panel, that doesn't like the generator. I've seen some posts that suggest an adapter that connects the ground to neutral is needed.
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Old 11-02-2022, 09:10 AM   #5
RollaMo
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Quote:
Originally Posted by FrankH View Post
Electrical Questions , 2020 Keystone cougar 24RDS . Shore power takes 3 minutes to connect .
3 minutes to connect indicates you are using an EMS.
So, that 3 minutes is normal while it does its checks before allowing power to proceed to the coach.

Quote:
Originally Posted by firestation12 View Post
One thought is that you may have EMS installed somewhere between the shore power receptacle and the circuit breaker panel, that doesn't like the generator. I've seen some posts that suggest an adapter that connects the ground to neutral is needed.
I have heard this also, but don't have a generator to test.
But that 3 minutes to connect is normal when using an EMS.


Very possible that EMS isn't going to allow power from a generator to pass through.
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Old 11-02-2022, 05:51 PM   #6
TimC
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Sounds like an EMS issue to me also. I had that problem when trying to use a generator with mine. I believe the issue is that the EMS doesn’t detect a ground, or detects open neutral (or something like that) on a generator. Trick is to connect ground and neutral on the generator. Can easily be done by getting an appropriate adapter and simply plugging it into one of the 15 amp plugs.

This is what you’d need: Hughes Autoformers Ground Neutral Plug https://a.co/d/2JrGjIe
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Old 11-03-2022, 04:24 AM   #7
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I believe this is what you need to make your EMS work with your generator. It is a neutral to ground bonding plug

Name:   neutral ground plug.jpg
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Old 11-08-2022, 04:40 AM   #8
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Sounds like generator issue will be interesting to hear back. Welcome from northern MN.
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Old 11-20-2022, 01:19 PM   #9
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Quote:
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I believe this is what you need to make your EMS work with your generator. It is a neutral to ground bonding plug
Attachment 42186
That's what I had to get for mine to work.
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