Spot lights

[angusboy]

Hi guys one side of spotlights will only work on one side when engine running used to be OK regards steve

 

[Vanman]

Battery so low that it needs a boost?

 

[angusboy]

No mate the other side works fine with no engine running

 

[Vanman]

Probably an idea to get a multimeter on them and see exactly what juice is coming through. Has anything else been changed recently?

 

[angusboy]

Both sides when engine running

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[angusboy]

No mate

 

[Vanman]

It's a strange one, they should be running off the leisure battery so the engine running wouldn't normally make much of a difference. Have you tried it with EHU connected?

 

[angusboy]

Yes mate it's weird they only work now when engine running thanks

 

[Vanman]

What is the make/model of MH?

 

[angusboy]

Bessacar e745

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[angusboy]

Bessacar e745

 

[Vanman]

I had hoped that bumping your thread might attract the attention of someone with a bit more knowledge than me.

About the only other thing that I can think of is that British built vans were made not to have electrics in the habitation while on the move. It's possible that some of your lights are working as originally intended and some others have been adapted to get round that. Maybe a wire has come loose somewhere and caused the change.

 

[autorouter]

It's not a straightforward one, I think. Maybe one of the logic outputs on the controller chip in the control box has got itself into reverse, so it's doing the opposite of what's intended. Maybe it's permanent, maybe it's temporary. It's a classic 'have you tried switching it off and on again' scenario. If you cut power from the leisure battery, preferably for several minutes to allow the logic gate to reset, maybe it will go back to its proper behaviour when the power is back on. Or maybe it's permanently stuck on, and needs a repair by an electronics specialist.

Some years ago I had something similar on a Maserati sports car - one headlamp was on, the other was off. Flipping the headlight switch turned the first one off, but the other one came on, The official cure from Maserati was to disconnect the battery for half an hour, and then reconnect it. Seemed to cure the problem.