Thanks MusicFan,
It does nothing. The hydraulic arm doesn't lock into place. There's no light on the solenoid, and the manometer never changes when the air compressor comes on.
My Selmi Centosei Coffee Roaster is down and I think too much air went into the manometer which forced water into the solenoid. But am a complete novice. Might anyone know of someone who might be able to help troubleshoot it?
Thanks, Andy of Coffee Factory Roasters in Red Lodge, MT