First of all contact Truma and advise that the mover is faulty and it is a 2003 model just out of guarantee. They may even fix if free of charge if you bend their ear a bit. worth a try.
The main battery is an Exide semi-traction marine battery but only 65A/hr, this ain't supposed to be enough and as the voltage is sensed by the control this could also be part or all of the problem.
dont know if it helps but powrtouch recommend no less than 85AH battery,can only assume there is a high load on startup.
Yes that's what truma say Michael, however it's a good battery and 65amps is still a lot of umph plus I'm only moving it yards not miles!!
Thing about the remote batteries was it stopped every 6ins with the old ones but does a few feet on the new ones. The other thing is it will switch on and off from 30ft away so the signal is reaching ok. Problem I've got is so many things could be wrong and I suppose it's going to be the last one I pick that cures it
If all else fails though I have an early 'hard wired' controller...they never go wrong
I have always used a 110 A/h battery since having a mover. However, with the extra gearing on my present mover (heavier van), I am staying with the 110 A/h battery because the movement is so much slower that the mover is engaged for double the time that it took to move my previous van the same distance. Other than that, it is OK.
Although I have now had two movers (both Powrtouch), I have never yet used the "hard wire" connection between control unit and remote.
I had an 85 Ahr battery but then got a 110 Ahr when I got the mover. Our van is light 1000kg fully loaded but the drive is steep - 1 in 5. The fitter who came to fit the mover looked at the drive and thought it is even steeper. I can't see any difference btween the two batteries - they both cope fine. The bigger one will obviously keep going longer.
I would contact truma, as Ian suggests and if they say it is out of guarantee, try mentioning that the opposition all have 5 year warranties.