No power to sockets after fitting inverter

Discussion in 'Tech/Mech General' started by Robert Clark, Apr 11, 2015.

  1. Robert Clark

    Robert Clark Funster Life Member

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    Hi Guys
    Had an Dometic 200w inverter/charger and B2B charger fitted yesterday.
    Got home to find that if the inverter is switched off there is no power to the 240V sockets, even when connected to the mains.
    The 240V supply is working, because the boiler is working
    The sockets do work when the inverter is switched on - but I expected them to work when connected to the mains with the inverter switched off

    Trying to contact the fitters - but no reply (as its Saturday)

    Going away tomorrow, so this could not have happened at a worse time

    Any ideas?
     
  2. gillnphil

    gillnphil Funster

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    Cant help with the technicalities but if all else fails you could disconnect it in the short term until you can contact the fitters.
    Phil
     
  3. Techno

    Techno Funster Life Member

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    Follow the outgoing cable from the inverter
    Where does it go?
     
  4. Wildman

    Wildman Read Only Funster

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    so how did they connect it?
     
  5. Robert Clark

    Robert Clark Funster Life Member

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    The inverter is next to the leisure batteries.
    The cables go from there under the floor and into the back of the Sargent
     
  6. Techno

    Techno Funster Life Member

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    You say an inverter/charger?
    Is the charger turned on
     
  7. Robert Clark

    Robert Clark Funster Life Member

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    Sent you a PM
     
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  8. Robert Clark

    Robert Clark Funster Life Member

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    Would this make a difference?
    My understanding was that you switch the unit on and leave it to do its stuff
     
  9. Techno

    Techno Funster Life Member

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    Seems to me that you meant 2000watt UPS inverter charger
    If that's the case it should be turned on and if on mains it will feed the sockets direct through and if off mains from the inverter
    All switches on
     
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  10. Techno

    Techno Funster Life Member

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    Surely you got a user manual ?
     
  11. Robert Clark

    Robert Clark Funster Life Member

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    Yes it's a Waeco combi power 2000w
    Going to turn it back on and give it a try now
     
  12. Jaws

    Jaws Funster Life Member

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    The fitter has presumed you want to use all the sockets off of the inverter and diverted the socket feed away from the Sargent to the inverter
     
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  13. Techno

    Techno Funster Life Member

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    If it's a UPS it does the changeover but it cannot do this if turned off
     
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  14. JeanLuc

    JeanLuc Funster

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    Apologies if this is slightly off the point, but having just read the Waeco Inverter Charger notes on their website, I am left wondering why!
    The blurb states:
    "The intelligent combination of inverter and automatic charger monitors the input mains voltage and reacts to the specific situation. This is how it supports the limited power capacity of external energy sources using battery power."
    Since when was an external mains supply more limited than battery power?

    A quick scan through the installation and user manuals (Waeco website) suggests that it is a pretty complex piece of kit. Under troubleshooting, it says if there is no power at the 230V output, check it is switched on. The installation manual states that the output must not be connected to any other source so I would suggest that it is bypassing the previously installed Sargent unit - in fact, the description of the Waeco product suggests that it is, in effect, a replacement for the Sargent.
     
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  15. Robert Clark

    Robert Clark Funster Life Member

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    Thanks for the input guys
    Electrics really are not my thing - much prefer plumbing
    Will report back as soon as I've spoken to the installer
    Hopefully it's just a case of user error or not having the finer points explained clearly enough
    Off to the Netherlands tomorrow so will give it a good try out!
     
  16. Robert Clark

    Robert Clark Funster Life Member

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    Update....
    I spoke to the installer to confirmed that the unit is a combined;
    Inverter
    4 stage battery charger
    Power support unit (UPS)

    It will do any of those things individually or in combination (which is how my unit is set up)
    It can be configured to suit your particular requirements
    As such it needs to be switched on all the time, because it constantly monitors the incoming supply an 'tops it up' if needed to suit the load in the van
    As such the 240V circuit is run by the unit and when switched off, there will be no power to the sockets.
    Furthermore the 240V indicator on my power control panel will no longer illuminate when connected to 240V
    However there is an indicator on the control panel of the combi unit which shows when its connected to the mains

    Seems like its going to be a great piece of kit - and with a bit more explaining than I got on collection, I'm a lot happier about how it works

    Will see how we get on over the coming weeks and 'tweek' the set up as required.

    Thanks for all your input guys - very much appreciated as ever!
     
    Last edited: Apr 11, 2015
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  17. funflair

    funflair Funster Life Member

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    If for example the 240 volt site supply has limited amperage capacity or trips the inverter will supply additional power using the batteries, this will then be replenished from the hook up supply.
     
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