Well it's dismaying to find out that Kawai has a known sticky key problem! I got 20 years of mostly maintenance free use out of a Technics PX103, and when it finally started wearing out and I replaced it with a Kawai CA67 (in April 2015) I thought I was good for another 20.
But a little over a year ago I noticed that when I first sat down to play, the C# above middle C (and, interestingly, the C#s above and below it) would resist being depressed. I could loosen them up by playing them repeatedly, but they continued to be heavier than the other keys, enough to throw me off. The problem has been getting worse, and I recently noticed it happening with a new key. When I press the problem keys I can sometimes hear a bit of a tick or crunch, like something is stuck in there. My 5 year warranty good until next April (I hope!), but I'd like to ask a couple of questions here:
1) The dealer has closed his store in Manhattan, but he still has a location in another state. Should I still try to go through him, or should I go to Kawai directly. (I assume this is possible, because sometimes dealers go out of business entirely. But who would I contact?)
2) Do I need to present some proof that there is a problem, or will Kawai send a technician out on my word alone?
3) Once it's fixed, how often should I expect the problem to recur?
4) If it does reoccur and I'm out of warranty, is this something I could fix myself. (When I first got the CA67 it had a stuck key
. Kawai sent a technician who was very competent, but he took the entire keyboard apart and there were parts all over my living room, and even though I am reasonable ept it didn't strike me as something I wanted to try myself).
5) Is the problem likely to have anything to do with wood keys vs plastic? I was willing to pay extra for the CA67 because I thought that if the additional sum was going to be amortized over many years then why not the best. But in all honesty I'm not a good enough pianist to require the very best, and reliability is more important to me.
6) For various reasons -- including focusing on another instrument -- I haven't played my CA67 as much as I expected to. Is underuse likely to be a contributing factor in this? (I keep the fallboard down when I'm not playing, and I've never spilled anything on it).
Many thanks in advance for any thoughts or advice anyone might have!