Hi all, although not new to motor homing I've been away from it for about 10 years, and my ex never let me near the running of the vans we had. I recently bought a converted Peugeot Expert 2006. My question is about the PMS3V/H system. I have the instruction but don't quite understand which position the mains switches should be in for it to operate correctly on mains. Also when I connect mains electric at home the polarity warning light comes on. Is this normal. I'm sure this topic has been covered before but I can't find it. Can anyone help a (silversurfer) lady owner. Thanks
When you connect your EHU, all you should need to do is to make sure all the circuit breakers are on. The mains one is the bigger LH one. After that it should be automatic. The leisure battery should charge and the fridge should work on 240V.
Strange that the polarity light should come on. It is just possible that there is a L-N crossed connection in the cable, but I would think the house wiring will be OK (unless there's been a bit of botched DIY).
You can get polarity testing plugs. If you can get or borrow one, check the house socket if it's OK, check a socket in the van. If it shows reversed polarity, it's either your cable or the van wiring.
If you're not comfortable with electricity, get a spark to check it out, but it is unlikely to cause any problems - even though it's wrong, everything will still work.
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Thanks Capt Lightening. Should the circuit breakers be in the up or down position. Mine are all up at the moment. I've not had working electrics on it since I drove from near Grantham to Orkney over the period of a week but it didn't charge the leasure battery either. This was a new conversion, completed in September.
My home electrics are not the problem, as it's a new build less than 3 years old.
Yes, the breakers should all be UP, but you might possibly find another mains breaker near to the EHU socket. Still, if you are getting a polarity light, that suggests that the power is getting through. I'll have a look at the manual and see if it suggests anything.
(my house is almost 200 years old - but it's been rewired )
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I would start at the socket you are using at the house and use a polarity tester, they are cheap and a worthwhile investment for future use.
If that’s ok check the EHU cable, is it a DIY or purchased unit?
capt lighting may find something in the manual.
I've ordered a polarity tester from Amazon, I don't have a camper shop here on the island. Later today I'll check out the things you've suggested. It is a new purchased unit, as is all of the conversion, the build only completed in September 2019. Thanks for your help. I'll let you know if I'm successful
Leaving aside the polarity light, have you got the switches set to the right position as described in the manual? Note there is also a 25A fuse in the leisure battery circuit.
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This might sound stupid but does the leasure battery need to be connected for the circuit to work. I noticed yesterday that the connection on the positive side isn't connecting properly. I've still had no luck. Checked fuses
Yes and no. I think that the manual says that the unit is "designed to work with" a leisure battery. However, when the EHU is connected the unit should supply 12V. even if a battery is not fitted. Again, the switches should be set according to the manual.
Naturally, you will want a leisure battery if you don't have EHU.
BTW, since it is a relatively new build, is it under warranty?
------------- Two drifters off to see the world.
I'm tired of reality, so I'm off to look for a good fantasy.
Yes it is under conversion warranty. But I live in the Orkney Islands the builder lives in Grantham, England. There is no way I want to drive it back there for him to try to sort it out. I've had other issues with it that he wasn't very helpful with. I'm awaiting a reply from a mechanic to see if he can sort it out. Thanks for all your replies
Ah, your profile says Northants - that threw me. I'm afraid it's hard to diagnose problems remotely. When I moved here I was told that if I wanted anything done I should ask a local man. If he did a bad job in the morning, everyone would know by the afternoon.
I studied electrical engineering at uni., though after a spell as a computer engineer, I spent many years in software development. I've still got most of my electronic bits and pieces, and I always recon that even a cheap test meter can solve a lot of problems.
All the best and I hope you get the van fixed OK.
------------- Two drifters off to see the world.
I'm tired of reality, so I'm off to look for a good fantasy.