

My understanding is with the 3 wires, pin 2 is positive, pin 1&3 are ground, ground out the left side it closes, ground out the right side it opens.
I've attacked it with carby cleaner and tried powering the pins no success, so i pulled it completely apart and I cant even turn that knob by hand, that knob should be able to turn right?
so this means i will need to replace both parts?? do they both come together?
anyone got any suggestions that might save me buying this new??