Sounds like the valve has stuck (maybe caused by formation of a vacuum). Try opening the valve before turning the machine on when you get home, and leave it that way while the machine warms up.
Hey all
Ran into a weird problem today with my Oscar, did my coffee as usual but after turning off my steam wand, I for the life of me, could not budge the knob to purge. It wouldn’t move no matter how much I tried.
I didn’t have enough time to inspect since I had to rush out for work so I’ll do that when I’m back but perhaps someone could lend me some insights around what’s happening?
Sounds like the valve has stuck (maybe caused by formation of a vacuum). Try opening the valve before turning the machine on when you get home, and leave it that way while the machine warms up.
So update: steam knob is still completely stuck. I will take the top off and have a look at what’s going on with that valve.
Just found this, doesn't tell you much other than others must have experienced similar and the solution may be a new valve.
"My steam knob has always been hard to turn, gets very tight and sometimes gets stuck on or off. Now, it just turns freely, does not tighten or stop and does not control the steam wand, so I can not froth milk or set the steam wand to leak when warming my machine up. Is this simply a matter of ordering a new knob and replacing the plastic part, or is it more complex? Is this a common problem for the Oscar? Thanks!
Posted by Anonymous on Dec 21, 2012
1 Answer
You need to replace the steam valve"
Why not give Jetblack espresso a call, they carry the Oscar, and may be able to help
- (Call us on (02) 9452 6470 (Sydney Store) or 1300 747 873)
Elektros show the part (I think) and it seems the knob pulls straight off. It may be grub screw retained on the side, or a screw in the middle.
Screenshot_20190430-180922.jpg
Pulls straight off.. surely?
Screenshot_20190430-181626.jpg
So eventually after pulling everything apart including my hair, I got frustrated, used my wrench on the knob to breaking point and just forced it, and damn it, it actually worked. Unfortunately I have huge marks dug right into the knob now. I still have no idea how it got jammed so hard.
Time to look into a lever mod for this thing...
So new seals, seats, spindles and knobs are available...