Main electric box switch on or off?

Discussion in 'Motorhome Chat' started by Spidey, Sep 5, 2014.

  1. Spidey

    Spidey Funster

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    This maybe a stupid question :)

    When we had the caravan we would switch off the electric in the main box when not using. Should we do that in the motorhome when not in use? We have just been switching it off at the panel, forgot all about the switch where the fuses are.

    It is going in to have a relay switch looked at next week, but just not sure what we shoukd be leaving on when not in use.
     
  2. GJH

    GJH Funster Life Member

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    I normally switch the 12v off when the van is not in use but never touch the mains box. We are hardly ever on EHU anyway.
     
  3. Jaws

    Jaws Funster Life Member

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    I was reading the Autotrail hand book a while ago.. It says the Sargent unit should be switched off when not on hook up.
    It says when on hook up plug in and then turn on the box.. Turn it off before disconnecting the mains.

    That was about a month after we nought it.. The thing had never been turned off before so it aint been turned off since !!
     
  4. scotjimland

    scotjimland Funster Life Member

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    By law there should be a notice inside your van giving the correct procedure.. if not ask your dealer where it is.. The main switch should be off before disconnecting the EHU cable and not switched on until after reconnecting

    Details here.. Table 7.5 - Instructions for electricity supply
    http://www.tlc-direct.co.uk/Book/7.9.2.htm


    To Connect
    1.
    Before connecting the caravan installation to the mains supply, check that :
    a) - the supply available at the caravan pitch supply point is suitable for the caravan installation and appliances, and
    b) - the caravan main switch is in the OFF position.
    2.
    Open the cover to the appliance inlet provided at the caravan supply point and insert the connector of the supply flexible cable
    3. Raise the cover from the electricity outlet provided on the pitch supply point and insert the plug of the supply cable. The caravan supply flexible cable must be fully uncoiled to avoid damage by overheating.
    4. Switch ON at the caravan main switch
    5. Check the operation of residual current devices, if any, fitted in the caravan by depressing the test button.
    In case of doubt or if, after carrying out the above procedure the supply does not become available, or if the supply fails, consult the caravan park operator or his agent or a qualified electrician.
    To Disconnect
    6.
    Switch off at the caravan main isolating switch and unplug both ends of the cable.

    Periodical Inspection
    Preferably not less than once every three years and more frequently if the vehicle is used more than normal average mileage for such vehicles, the caravan electrical installation and supply cable should be inspected and tested and a report on its condition obtained as prescribed in BS 7671 (formerly the Regulations for Electrical Installations) published by the Institution of Electrical Engineers.
     
    Last edited: Sep 5, 2014
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  5. greygit

    greygit Read Only Funster

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    Blimey I have never switch off at the main box ever, perhaps I should do it in from now on.:eek:
     
  6. Badknee

    Badknee Funster

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    Yes it's a good idea.
     
  7. Don Quixote

    Don Quixote Funster

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    Can honestly say never done it. On 247 / 365
     
  8. Jaws

    Jaws Funster Life Member

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    Why ?
     
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  9. Mack100

    Mack100 Funster

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    Had our hab service 2 days ago and the mobile engineer advised that we should only turn on once we were connected to ehu, said it would prevent surges.
     
  10. Badknee

    Badknee Funster

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    There's lots of gear on board that may or may not be upset by the L/N/E being connected out of sinc.
     
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  11. Spidey

    Spidey Funster

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    Thanks, we always did it with the caravan but never thought about it with the MH. On handover we were not told, but think it is a good idea. Will do it from now on. So the battery 12v still works if the main switch is off ?
     
  12. Mack100

    Mack100 Funster

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    The engineer told us to turn the fridge on to 12v when we move off as it wouldn't do it automatically if the Sargent unit was off.
     
  13. Badknee

    Badknee Funster

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    Yes, the only connection between 230 and 12 volt is the on board charger. Your 230/12 volt fridge is switched so no connection. :)
     
  14. Badknee

    Badknee Funster

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    Mmmmmm, not sure about that.
     
  15. Don Quixote

    Don Quixote Funster

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    The ONLY thing we turn off is the gas whilst on the move. If there was a problem with EHU then the main electric box would trip telling me problem!!!!! as soon as I connect - the same thing would happen if I connect first ten switched on the electric box would trip......... same thing.
     
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  16. Mack100

    Mack100 Funster

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    I understand that, we'll find out next time we travel.
     
  17. Badknee

    Badknee Funster

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    Th

    Thats the thing, we all do as we like. No problem with that.
     
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  18. Gorse Hill

    Gorse Hill Funster

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    Really, how
     
  19. Kool Kroozer

    Kool Kroozer Funster

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    Never turned ours off, we were never informed to turn it off when purchased so i am not gonna change anything now !
     
  20. tony_g

    tony_g Funster

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    Slow news day?
     
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