UPDATE: I sent in my 1909 Sigma, that had been giving me issues. I received a 2209 as a replacement. Everything works as it should now. All features that where advertised are functioning properly. HRM monitor has good resolution and tracks up/down as it should. Cadence works fine, as does speed. Also had my cell phone with me, and did not get ANY interference or drop-out of data. Very pleased now. Thanks!!

I am having similar issues with my 1909. It's been working OK for two months (although it did take quite a few seconds for the computer to read the cadence and HR), but today it decided not to read at all. I can't get speed and I get on and off readings for cadence and HR (from a 0 to a value and then back to 0 constantly). The troubleshooting guide seems totally useless. Any suggestions? Is there someone at Sigma I can contact, Tel number or email?
Thanks for the help.

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--J