Sticky Key

[frankiefrank]

I have a U1 piano with one key, the 3rd highest note, sticky. The hammer doesn't hit the string once in a while. Is there any easy way to fix it?

[richard black]

That could be caused by all sorts of things. You just have to root around and try to find out what's sticking - the key itself, the hammer, some other part of the action....

[keys60]

Since spring has sprung and most regions are experiencing a lot of moisture (at least in my neck of the woods), a commomn problem is the key or the felt key bushing swells up and sticks. You can try wiggling the key side to side ( you can even do this with a thin screwdriver, I'd wrap it in a this Tshirt rag and be EXTREMELY GENTLE) and it may widen hole a little and overcome the sticking. Again, keys are wood and they do break, so be gentle. Then again, as mentioned above, it could be a host of things like a jack spring broken, bushing at pivot points dirty or swollen with moisture or sometimes a hammer shank warps due to moisture and the hammer could be touching the one next to it. You'll have to uncover it and take a look. OR call your trusty piano tech.