towbar and series wiring

Andy vaguely muttered something like ...

I went to Halfords and bought a different indicator relay that suited the amount of lighting .. and included a 'buzzer' to warn me when the caravan/trailer was (or wasn't) coupled .. ;)

I think your neighbour is on the right track.

New flasher unit - preferably one of the electronic ones that's stable under varying bulb loads.

cheers guys,

job number 376 on the to do list then.

Andy

That's too simple for the government though .. ;)

I normally just look in the mirror to work this out 8-)

And you must have visible or audible warning that your trailer indicators are flashing.

No, you've just got a 2x21w flasher fitted. Go out to Halfords and buy a 2+1x21w flasher (for trailers lights as well) which will handle the extra lights. This will have 4 connectors instead of the three you currently have, the extra terminal should be (by law) connected to another warning lamp, to show that the flashers on the trailer are working as well.

Alex

The message from Andy contains these words:

you are probably overloading the flasher unit. Should fit 2 relays- wire input to rear flasher wireing 1 for left and 1 for right, then wire an independent supply (there should be an unused powered wire in rear loom) through the relay output to trailer flashers. cheap few UKP from halfords etc work ok. DON'T USE SCOTCHLOCKS unless you want a completely undecipherably wireing mess in a few years.

could fit a more powerful flasher unit :-) never tried it myself though!

sometimes both trailer and vechicle rears are taken from relays.

generally it flashes really quickly when a bulb gone.