Motor Mover Issue

PaulandDonna
PaulandDonna Forum Participant Posts: 2 Participant
First Comment
in Your stories #1

hello, first time post. I have a Quattro Titanium AWD fitted to my Elddis Avante 840, when engaged the heat generated is burning through the copper cables eventually blowing inline fuse, any thoughts before it goes back to supplier in 3 weeks

Answers

  • Cornersteady
    Cornersteady Club Member Posts: 15,507
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    #2

    I've never heard or read about such as issue, my main thought is not to use it but that's not much help.

    I assume you're not using it with the EHU?

  • wh1nbrew
    wh1nbrew Club Member Posts: 140
    100 Comments
    #3

    I didn't have this particular problem with our Bailey, but the mover did keep cutting out. This was due to the cabling being undersized for the run between the battery and the mover control box, as in the Bailey, the battery is in the centre of the van, and the fitter had simply fitted longer cables of the original size (I've forgotten exactly what that was). I fitted new larger diameter cables to reduce the resistance per metre to the what it would have been had the cables not been extended. (I hope that description makes sense). So I went from, I think 8 mm diameter to 16 mm diameter, which is still borderline, and still overloads sometimes when going uphill out of our drive. I couldn't fit larger diameter cables due to the holes on the battery casing etc. It would be worth you getting a decent auto electrician to review the cabling and renew as it sounds as if it is seriously undersized for the current required by your motormover.

  • wh1nbrew
    wh1nbrew Club Member Posts: 140
    100 Comments
    #4

    A few further details taken from my letter of complaint to Powrtouch. Hope this helps. They did come and check my installation andgave it the all clear apart from advising me to upgrade a couple of bits of insulation round some connections.

    According to the installation instructions, Powrtouch provide 1.5 metres total of nominal 8mm diameter including insulation (16 mm2) battery cable.

    Existing – 16 mm2 cable assumed resistance = 0.0126 ohms / metre

    • Therefore total resistance of existing = 1.5 metres @ 0 .0126 = 0.00189 ohms
    • Existing – 16 mm2 Run length 3 metres – resistance = 0.00126 x 3 =0.00378 ohms
    • New cable needs to be < 0.00189 over 3 metres, or 0.00063 ohms / metre
    • Requires use of 35 or 40 mm2 cable
      • 35 mm2 cable = 3 x 0.00056 = 0.000168 ohms total
      • 40 mm2 cable – 3 x 0.00050 = 0.000150 ohms total

    I bought 3 metres of 40 mm2 cable, so the resistance should be less than 1.5 metres of 8 mm cable (16 mm2). The final installed length of each cable is approx 2.6 metres.

  • PaulandDonna
    PaulandDonna Forum Participant Posts: 2 Participant
    First Comment
    #5

    thanks for reply’s real incite full info. I have been advised it may be the hand brake not fully disengaged making the mover work harder generating excess current. Will see what Newport Caravans diagnose when serviced later this month

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