AlJames Right - pump is supplying water to the IN side of the solenoid but its not getting through so presumably I need to order up a new solenoid unit and the actual valve too… (?)
They come as a single unit and it would be good to verify this first…
- get multimeter, set to AC volts 250+ volts range if not auto ranging, place on solenoid and let pump run,. you should register a voltage…if you don’t could be wiring fault to solenoid, or failure of Gicar RL30 box. If you do get voltage move to step 2
- If multimeter shows power coil may be fooked. Unplug machine power off and take a resistance reading of the coil (tell us what it is). If coil is OK, move to step 3
- Solenoid may be blocked, disassemble and see what’s what.
I hope that’s clear enough, if not, get an espresso machine engineer to take a look, they will have it fixed within 30 minutes if they have the standard parts required.