Peugeot 206SW Reg 2004?

Hi, i am having a problem with my indicators. In hot weather, when i indicate to turn left it works fine but when i indicate to turn right, the right full beam light comes on with the right indicator light. To cancel the beam light i have to press on the top of the indicator stalk or waggle it .
But in cold weather, the whole thing works normally.
any suggestions and solutions please..