Makes my skin crawl. Nails on chalkboard style. New solenoid for sure. Warranty?
Could just be the spring inside the solenoid have you had it apart and given it a clean just undo the 2 screws in the metal plate pullit apart slowly give it all a good rud down give the spring a pull to lenth it back out screw back together in order you took it apart think there is only 2 0r 3 bits inside it
It's worth a go
No mate not sealed at all unscrew the black.bolt under the solenoid will come away from the reg then as I said above the 2 screws in the metal connector plate I have a reg and solenoid just like yours the solenoid wadjt closing properly wiped it off had a play and just clenched the spring a little and it worked bot had one crackle before but it's not going to hurt having a look is it
Co2 art are very quick at responding