I guess this is kind of a long story, I’ll attempt to be brief.
I had been very happy with my Kickr, but then last fall (Sept 2018) I starting having this one particular issue. The resistance would completely crap out at random. Sometimes it was in the middle of a workout, sometimes it was at the beginning. When I say ‘crap out’ I mean that the trainer was no longer supplying any resistance. The TR app (and the Wahoo app) could still ‘see’ the trainer, it was still paired over both BLE and ANT+, but no resistance, no speed, nothing. If I tried to calibrate it (in TR or in Wahoo) I couldn’t actually do the spindown calibration, because there was no registered speed (so the calibration process would never actually start).
I went back and forth with the CS folks at Wahoo for a while. They suggested several things, none of them worked. They even went as far as to send me a new motherboard, which I installed, and the issue kept popping up. The peculiar thing was that it wasn’t every ride. It would work for a week and then spaz out for several days.
Also, in terms of the kickr, a new motherboard is essentially a new trainer, so the fact that it didn’t solve the problem makes me think it’s something on my end. Their suggestion was that another bluetooth device was ‘stealing’ the signal. Even though I had never paired the Kickr to anything except my phone, I turned off every other bluetooth receiver in the house, but again it would work sometimes, then stop, etc, etc.
Then, after several weeks of this, it just worked again. Flawlessly. I finished the CX season, and then trained for an ironman this past winter/spring with no issues. I did a bunch of 4+ hour rides on it with no hint of problem.
Then all of a sudden, two weeks ago, it started again. Crapped out on my wife, and then came back to life 20 minutes later. Then it worked for a week. Then I tried to ride last week and couldn’t even get started. Haven’t tried it since then, I just put my bike on the dumb trainer and used my P1 pedals. I’m going to try the Kickr again tomorrow.
One other strange thing: Whenever this happens, when I go to the spindown calibration page in the TR app, it says my last calibration was 2/1/2019. Every time, no matter how many spindowns I’ve performed (when they work, that is). If the unit goes out, calibration date goes back to the first of February.
As I’m sure you can imagine, this is terribly frustrating for me. Since I’m not sure that it’s the actual machine, I hesitate to go out and drop the coin on a new one if this is just going to keep happening.
Any advice you can give you be much appreciated. Thanks.