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I've just done it and it looks like the halls are no good. The reading just stays the same when I move the wheel.

OK, I think I see. So I need to test the halls again between black and red? The stiffness test is just for the phases then.

But I didn't get the 5v when I turned the wheel backwards. Does that mean that the hall sensors in the wheel are blown? Just want to check I did the hall sensor test correctly. I tested it at the connctor where the green, blue and yellow wires (thin ones) go into the connector cage. I left the...

Ok, tried the hall sensor test and it failed on all 3 phases. Also, when I connect the phases up I noticed the wheel is stiffer to turn. Thought I'd mention that too because I read that it means something.

Hi, hope you are well and thanks for your help so far. I was just wondering about the motor hall signal test. Do I leave the 3 phase wires connected when I test for 5v pulsing. I know that the blue phase is not working because of damaged mosfets, so will it still give a reading at the hall...

Thanks. At some point I will have a look at it. I opened it up shortly after the damage was done and got a burning smell that seemed to be coming from the diodes. It would be easy to desolder the contacts at one end and test them. But for now I think I'll just put it to one side and continue...

Thanks Andy. I'm not casting judgement at all. It was probably a good bit of kit. I'm the idiot blowing it up. It wasn't like 100 pounds or anything. Do you know of any way to repair it though, out of interest.

Thanks, is there a way I can find out which mosfet to change. Not that I probably would. I heard that if one mosfet goes, then so do a whole bunch, but that could be wrong, I don't know. I was just weighing out my options.

Hi, I've just successfully tested the controller and it seems ok. I got the reading from .85 to 3.6 volts so I'm assuming that's a decent range. I tested the 5v rail and got around 4.8v. The main power source came to 53v which is conclusive. But the mosfet test proved negative. Yellow and green...

Yes, I wish I would have heard your opinion before I bought. I can't believe there wasn't an internal fuse of some kind.

I've just found another way to proceed. I've seen a throttle and controller on ebay for 31 pounds 19 pence. It's 48v 1000w so it would run it and the sockets can be wrong because I can swap them over from mine if I need to. That would't break the bank and it would be an easy fix. Do you think I...

I've just blown my tester up. I put the alligator clips onto the throttle connector but they are so close together they must have touched. I can't see how you are supposed to do this. I would need a male connector to loose wires on the throttle. Anyway, I can't see an internal fuse so I guess...

Ah, sounds like I'll have to have a go then. I think it will be the weekend though cos I'm a little buy at the moment. The Ebay shop wants me to take it to a repairer and send the bill to them but I wanted to have a go first. It would save all the faff if I could just isolate the problem at...

Hi, thanks vfr400. I decided to wait for my tester to arrive. It should be here tomorrow or Thursday. It will be easier to hook up and easier to read. I'll let you know the results. By the way, can you tell me exactly how to hook up the red wire. Does it go between the controller and the...

Not to worry, it only cost me 11.56 so I'm not too fussed. I have a multimeter too so can use that at any point. I have a soldering iron on stand by if I need to whip out a component.

Hi, thanks for your reply. Here are some photos. Hope they are clear enough.

Hi, thanks for the info. I've ordered one already. I'll give it a go. If it tells me a hall sensor isn't working, what could I do? All the wires look fine so I'm guessing it would be the hall sensor itself. Are these inside the controller? I'm guessing if I locate the faulty one, the first thing...

Hi, I have a 48v 1000w front wheel conversion which I have had no problem with. So I decided to buy my sister one as a present. It wasn't the same model but still 48v 1000w. I hooked it up and it went ok but spun backwards. For some reason when I turned the wheel the other way around it would...

Wow, it works! There were 2 magnets that were the wrong way around. I just tried it and it rotates indefinately at a constant rate now when I pedal. I probably wouldn't have thought about this and was on my way to buying another PAS. Thanks fvr400, and the rest of you for all your suggestions...

Hi, thanks for your further coments on this . I really appreciate the feedback. I remember one of the magnets fell out and I just put it back in anyhow. I am now thinking this is the problem. I guess I need to need to put a magnet against each one in turn and find the one that repels rather that...