Wahoo Tickr HR accuracy problems
I generally have been happy with Wahoo products, but I've had bad luck with their HR monitors. My first Wahoo Tickr died after about six months. Wahoo sent me a new one -- good service. Now, after about another 5 months, it is giving wildly inaccurate readings (showing 180-190 on a relatively easy base ride yesterday, then 104-120 on a much harder ride today). I've been training for a long time so have a good idea of where my HR should be in given efforts, so I'm certain that these are way off. Additionally, the HR seems to "stick" for long periods (e.g. - exactly 136 for 10-minutes despite varying efforts).
Has anyone else experienced this issue with Wahoo Tickr? Any known fixes? I did recently replace the battery.