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Old 07-03-2015, 07:49 AM   #1
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Running engine while on shore power

I spent an hour searching on here but can't find the answer. Can you start the engine on the MH to exercise it while on shore power or do I need to disconnect so it will not cause a conflict between the alternator and the converter? I know when you jump start a vehicle you need to disconnect the jumper cables immediately after starting so the alternators won't fight.
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Old 07-03-2015, 08:54 AM   #2
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The only issue would be if you drove off while still connected to shore power but all seriousness aside there are no issues or conflicts associated with starting your engine at any time.
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Old 07-03-2015, 09:01 AM   #3
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The only issue would be if you drove off while still connected to shore power but all seriousness aside there are no issues or conflicts associated with starting your engine at any time.
I agree with bubbles. I've owned 3 different Class A diesel pushers and NEVER had an issue with running the engine while plugged into shore power. The transfer switch takes care of this for you.
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Old 07-03-2015, 12:39 PM   #4
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No
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Old 07-04-2015, 08:02 AM   #5
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The transfer switch takes care of this for you.

I thought the transfer switch was only for separation from shore power and the gen set to prevent back feeding thru the shore power umbilical cord.
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Old 07-04-2015, 08:55 AM   #6
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Running the engine while hooked to shore power is no different than running generator while driving down the road as shore power and generator do the same function.
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Old 07-04-2015, 02:47 PM   #7
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Now that makes sense. Thanks
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Old 07-04-2015, 03:19 PM   #8
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No

Very informative.
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Old 07-04-2015, 04:26 PM   #9
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Very informative.
Yes
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Old 07-04-2015, 08:21 PM   #10
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its no different than putting a set of jumper cables to start a vehicle. long as your polarity is matched all will be kosher.
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Old 07-08-2015, 06:23 PM   #11
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Just bought Georgetown 270s. The tech said it was ok. He said do not run generator and shore at the same time.


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Old 07-08-2015, 07:44 PM   #12
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Our tech said it was ok to run generator while on shore as the transfer switch would take care of it
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Old 07-08-2015, 07:56 PM   #13
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Don't know so i will ask. Why/when would you need both.
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Old 07-08-2015, 08:02 PM   #14
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You can run the generator while on shore power but why would you want to? It's true the transfer switch should protect the generator and unit electrical system from damage by preventing the generator from closing in. However you are unnecessarily challenging the system to function properly. If the transfer circuit fails say good bye to your generator not to mention the possibility of fire and frying of the electical system and things like TVs or other electronics connected.

This thread started with if you could run the chassis engine which is no problem as the main engine has no connection to the 120 volt system unless you have the inverter option to power some outlets via the 12 volt system.
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Old 07-08-2015, 08:05 PM   #15
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that would have been my reply to gl1800 but mike beat me to it. if it will help cooling or refrig I am for it. If not what would be the advantage. I will be going in Monday for some minor work. I will back.




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Old 07-08-2015, 08:48 PM   #16
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Very informative.
sorry, working a shutdown. I should have finished before posting,
No, it makes no difference. run engine while plugged it or while genny is running. I run genny plugged in, I run engine while plugged in, I have run engine and genny while plugged in. Hope this is a little bit more informative.
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Old 07-08-2015, 09:09 PM   #17
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sorry, working a shutdown. I should have finished before posting,
No, it makes no difference. run engine while plugged it or while genny is running. I run genny plugged in, I run engine while plugged in, I have run engine and genny while plugged in. Hope this is a little bit more informative.
Thanks. So your NO was actually a yes?
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Old 07-08-2015, 09:10 PM   #18
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Don't know so i will ask. Why/when would you need both.
My thought process was to not have to disconnect the shore power line or open the breaker in the garage while I exercise the generator. I guess wearing out the breaker in the garage would be the least costly item to replace if transfer switch were to malfunction while plugged in....and sorry for changing the original post Hey at least were are still talking electrical
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Old 07-08-2015, 10:28 PM   #19
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Thanks. So your NO was actually a yes?
Well, yes, No, I mean no. Now you have me confussed.
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Old 07-08-2015, 10:30 PM   #20
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Screw paper mill shutdowns, lets go camping!!!!!!!
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