Full beam not working

[Betty boop 1]

hi there always good for a second post my full beam/main beam has stopped working ...............i have read several posts on here with regards to this to no avail so dip beam and side lights check........main/full beam as flash check pull stork back for permanent full/main beam nothing other than blue light on dash if i hold it back it stays on until i let go ive had the switch to bits cleaned reassembled no joy checked fuses no joy checked and cleaned earth at crown no joy even changed the switch assembly for a "good" second hand one and had exactly the same problem can any one help/through some light on this (excuse the pun)
thanks in advance
EWAN

[Bubble Meister]

To confirm: side lights are ok? With headlights on, main beam doesn't work when 'latched'? Main beam does work if you 'flash' them?

Main / dim stalk switch has two power supplies - a permanent for flash and then one from the head light switch - this selects between main or dipped. It sounds like the power supply is dodgy, with the headlights switched on, check you have 12v on the black and white cable and the red and yellow cable at the flasher switch plug. Both should be 12v. If not find out why. If so then it's the switch.

[marlinowner]

If dipped headlights are working (sure its not just the sidelights?) and the main beam flasher works, then it can only be the flash/dip switch. All cables, connections, earths etc must be OK.

[Betty boop 1]

thanks guy its gone cold and dark oh and now raining so going to trace it all back tomorrow in day light and probably start rewiring them through a relay or two, i thought mini electrics where bad to work on what makes it worse is the guy who owned the bus before us was apparently and electrician and i use apparently loosely the amount of wiring ive already sorted and as for bodge blocks is well...........say no more, i shouldnt be shocked (haha) will keep you updated

[Betty boop 1]

so head lights now operational in a fit a OMG ive tried everything now i put another dash switch in and bingo job sorted ..........interestingly though i took the old switch to pieces and found that the contacts where burnt out..............head light bulbs that are fitted appear to be 55/60 watt(stamped on the bulb) could this be the problem, based on previous posts about upgraded bulbs on standard electrics if this is the case how would i go about wiring a relay in(single head lights) to help protect the switch ive found post on here for twin lamps but not single
regards
ewan