Replacing rain sensor

[ec1jones]

I need to replace a rain sensor that has failed.

Existing wiring colours are Blue, Black, Red, Yellow and earth
New wiring colours are Black, Grey, Orange, Silver, Green

Anyone know which of the new wire colours correspond to the old ones?

Thanks!

 

[He who knows]

Does the new one come with a wiring diagram?

If you don't have the instructions for the old one, can you trace the cables?