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Open Roads Forum  >  Class A Motorhomes

 > No shore power. 33c Sunova

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bfacklam

Kansas

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Joined: 02/09/2007

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Posted: 08/30/21 09:46am Link  |  Quote  |  Print  |  Notify Moderator

RV is 50 amp. House receptacle is 30 amp. Will keep batteries charged with portable devices. Made an appointment with shop, but busy till early October. Thanks for all advice. Felt reassured when generator gave power to all outlets.

enblethen

Moses Lake, WA

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Posted: 08/30/21 10:07am Link  |  Quote  |  Print  |  Notify Moderator

You could have a bad adapter. 30 to 50 amp adapter ties the two hot leads together. If the jumper in the adapter fails, you will loose one leg of the power to the rig.
Cheap to get new adapter!
If you have a energy management system, mack sure it is set correctly as some will need to be set for 120 volt shorepower and not 50 amp which is 120/240.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


wolfe10

Texas

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Posted: 08/30/21 11:28am Link  |  Quote  |  Print  |  Notify Moderator

Bottom line is that you will have to pull out your VOLTMETER and see exactly where you go from "power to no power" on that line.

We can speculate until the cows come home, but 15 minutes with a voltmeter will give you the FACTS.


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

wa8yxm

Davison Michigan (East of Flint)

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Posted: 08/30/21 05:29pm Link  |  Quote  |  Print  |  Notify Moderator

There are a couple of types of Transfer switches..... One is a relay that normally rests in one position but when the generator starts and a timer times out it clunks over to generator power.

The other is two sets of contactors/Solenoids/relays (3 names same device) and whichever gets power first pulls in and locks the other.

now I suspect some of those may need 12VDC to work. Don't know.

But you need to talk to somewone who does know.

Word of caution
When changing from/to generator power to/from Shore powe

Shut down the "From" wait 3 minutes before switching on the "TO"

or shut the main breaker off then switch during the next 3 minutes and then restore main breaker.

Switching under load (hot switching) can take out the transfer switch.


Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times


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