Join Date: Mar 2019
My Motorhome: I drive...
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hopefully I can resurrect this thread, with problems I am having with my motorhome (Dethleffs A Class) and it's Amperor charging system.
I bought this van from Glossop's and when it went in for its pre sales check over they said that the alternator had gone, they duly replaced it, and 4 weeks later when picking it up they said it had gone again (delay tactics I wonder) anyway I complained like hell, and we got the van with a new alternator (they said).
after having it a month or so I noticed that the dashboard warning lights, ASR, Handbrake, and Brake Fluid were flashing on and off intermittently, and on the Amperor system control panel, the voltage was jumping up and down between 14 and 18 volts, so I just thought ill check both batteries as they had been new ones from Glossop's, both batteries terminals were loose, so I tightened them up and everything was fine for a few weeks. Anyway this month same things happened again about 50 or 60 miles into a journey the Amperor system shows that both batteries are fully charged and charging at 14.3v, then it happens again and starts over charging, also this time when starting the engine, the battery light stayed on twice, I then restarted and it went off, so yes I know there is a problem with the alternator now more than likely.
Question is, how will I find out if this is the original size of alternator that Glossop's put on, or it may be an inferior type/wrong alternator that can't cope with giving max load out to the Amperor, or is the Amperor system killing the alternators, or is the alternator the wrong one that they have put on that is the none sensing type, when the original one had a sensing alternator that works with the ECU of the van.
I don't want to buy the wrong type and have it fitted, as a garage will surely go off whats ever fitted and just replace it.
sorry for the long winded post, but I'm stuck between a rock and a hard place with this dilemma and hope any of the original posters can help even though this business (Amperor Associates have gone bust) also if anyone has the original Amperor pdf's that would be helpful.