Ford Ka A/C bulb problems

[anonymous-user]

I have been having some trouble with my Ka's A/C illumination LED which has been acting strange for about a year which is when the light stopped working altogether.
Since having the A/C regassed I have been using it a lot more, once or twice a week or more, and the bulb decided to start working again!
However the light only works when other lights are not turned on. When I turn on the sidelights or headlights, the A/C light goes off but the A/C stays on. Does anyone know what could cause this type of fault?