If you live in the US, the turn around time at Ikelite is less than a day if you let them know you are in a time crunch. If you priority over-night it to them, they will fix it the same day they get it and overnight it back to you that same day. Email them to warn them it is comming and that you need it back ASAP. If you send it tommorow you could have it back by wednesday or at latest thursday.
OR.... Ikelite controlls, (both the pushbuttons and the knobs) are very easy to service yourself.
To remove the knobs, first loosen the screw on the side of the knob with an allen wrench. The knob will just pull right off of the shaft. Then you can then push the shaft right through the inside of the housing. (on knobs like the shutter button, the shaft that extends is the screw)
To remove the pushbuttons, remove the C-clamps on the inside of the housing, you can then just pull the button out from the outside. (in less you have spare C-clamps, be very carefull not to break or loose them because you will need them to put the housing back together)
Once you have the sticky buttons out, clean both the buttons and the holes good with water, then use ikelite o-ring lube to on the o-rings and anywhere else that looks like it might benefit from a bit of lube.
Then put it all back together. It's best if you only do one button at a time so you don't loose a part or forget which button goes where.
