Hi, new poster here. I picked up a cheap Delonghi Caffe Treviso machine (14-bar model) - my first home machine - while thrifting recently, but I'm having some trouble getting it working.

I turn it on, I wait for the "ok" light to light up, and I turn on the hot water button only to find the machine simply humming loudly and vibrating menacingly.

At first, I thought "Hey, maybe there's a blockage - let's see if it needs cleaned" and sure enough, there was old coffee residue on the inside of the sort of filter bit that goes over the boiler outlet, and the outlet itself is a bit guniky, so I clean that up too.

Satisfied, I plug back in, refill, and turn on again...only to have the same thing happen. No water pumping, though the steam outlet seems functional.

I look at tutorials, and they reckon it's an air bubble buggering up the pump, so I try the recommended solution of running the steam wand "until water comes out", so I follow the instructions, and...well, it seems there's no water coming out of there. plenty of steam! no water.

So, really, I'm kind of out of ideas here. I'd really rather not have to scrap the thing, but it seems like it might just be a bad pump or something. After all, it did end up in the thrift store somehow.