Thanks for the feedback chaps! I really appreciate it!
How can micro switches get dirty? They look to be sealed units in their own right!?
They look similar to this type of switch here:
https://www.google.co.uk/imgres?imgu...act=mrc&uact=8
Same really goes for the "rotary encoder"?
It looks similar to this:
https://encrypted-tbn0.gstatic.com/i...A_DdFX0WgQKG3A
I've just checked. I can get some Servisol 10 from Maplin tonight. Can i just spray this all over each of the contacts/encoder in turn, then work them over a bit, and then does the stuff naturally evaporate/dry off, leaving everything clean and dry as if it was never wet?