Washing Machine plumbing HELP!

[benji_styler]

I am trying to connect my new washing machine. the old one had 2 connecting water supplies a hot and a cold. the new machine requires just a cold input. However i cannot get the cold water to come out of the pipes when the gate is shut. the hot input can be turned on and off using the gate but the cold doesnt appera to be working? any suggestions.

 

[kevplumb]

replace the valve

 

[BIG BOY]

the blue plastic handle is probably rounded out, undo the screw take off the handle and turn the spindle gently with a small spanner

 

[brumylad]

if it's a self cutting type washing machine tap then I've seen these corrode so badly that they actually block up.