Can not turn off high beam

[Baard]

Last season I noticed that high beam turned on without help from me now and then. I can not turn it off.
On low beam I can turn on high beam as normal when fault in not prersent.
When I started up this year it is the same (strange...), but I think now is high beam on more often than last year.

Any suggestions to solve problem?
2008 F800 with 100.000+ km's.

 

[tosh23]

try wd40..

Last season I noticed that high beam turned on without help from me now and then. I can not turn it off.
On low beam I can turn on high beam as normal when fault in not prersent.
When I started up this year it is the same (strange...), but I think now is high beam on more often than last year.

Any suggestions to solve problem?
2008 F800 with 100.000+ km's.

I would squirt some wd40 or some contact cleaner in to the switch and hope that works....

 

[Baard]

Well, I changed the complete switch. Problem still there.
Guess I have to look at some electric schemes.

 

[snaponphil]

Long shot, but try disconnecting the battery for an hour, sounds a bit like electrics have got muddled..
There is a function when moving the bike the headlight comes on, maybe it's thinking it's moving while parked..
Strange one tho..
All else fails I suggest dealer has a look..
Good luck

 

[Popell]

Not intimately familiar with the leccy system on these but certainly a chaffed wire would possibly cause these symptoms. If they are relayed I would look at swapping those out as a next step

 

[Baard]

I haven't searched any further on this one yet, just observed.
I rode to work a morning with temperatures below freezing, the failure was not present.
After a period with dry weather the problem was not present.
I washed the bike the other day, the problem is back.
When I park the bike with warm engine the problem is not present if I ride on while bike is still warm.

I think there is some worn isolation on a cable some where, or maybe some water in a connection.

But now the daylight is back up here in North, so far I have disconnected the high beam bulb.