Headlights stuck on full beam

[totallyconfused]

Hi...Have a t25, 1983, Aircooled firebus. My headlights are stuck on full beam. When I flick the controller arm it just stays on full beam. When I looked at the fuses...number 5 fuse was blown.

Replaced fuse and no difference. Still stuck on full beam.

Any ideas

[MidLifeCrisis]

I assume that this is just when the headlight switch is on?
Are high beams definitely on - or is it just the tell-tale light that is on?

[totallyconfused]

How do.

Yes, was only when lights were switched on.

Have just had some dinner....went out to have a tinker...working fine now!!!

I have a sneaky suspicion that this wont be the end of this.

[totallyconfused]

How do.

As I thought...turned on the lights and stuck on main beam this morning. Got to work . If the engine isnt running then lights dip and go to full beam fine. Start the engine and it just locks on full beam. Wierd.

Any ideas?

[totallyconfused]

Do you think it could be a faulty relay?

When the engine is running it is failing?

Where would the relay be?

[MidLifeCrisis]

The high beam switch has two circuits - one for the high beam 'flash' that should work with ignition off (but won't hold the high beam on - it's just on while the switch is pulled); the other circuit is only live when the ignition switch is on and it's that circuit that holds the high beam on; its very possible that it is the switch that is at fault - that's where I would start the investigation!

[totallyconfused]

Thats great. Did not know that.

The high beam works if you pull the lever with engine off...just flashes. This seems fine.

Will have a look at switch. You mean the actual bit at the end of the arm. Take off the plastic cowling round steering coloumn?

[Mocki]

Could be the "X" relay .
It only allows the headlights to work when the ignition is on .

[totallyconfused]

Thanks a lot for your help.

I took switch off, cleaned contacts, sprayed with WD40....seems to be working fine now.

Fingers crossed...and a merry christmas to you all. ☺

[Smosh]

Thanks a lot for your help.

I took switch off, cleaned contacts, sprayed with WD40....seems to be working fine now.

Fingers crossed...and a merry christmas to you all. [WHITE SMILING FACE]

Pleased you got it sorted. Half way through upgrading my wiring to my headlights, I managed to get mine to do this. Never worked out what it was. But I pit it down to dirty/ corroded connections.