My HRM-PRO is 15 months old.
It stopped working, so I changed the battery before a zwift session and it then connected ok.
The following morning I went for an outdoors ride and I couldn't get it to connect again...
Upon coming home, I've tried another new battery, this time from a different pack - in case the batteries were old. It connected to both my phone in Garmin Connect, then I successfully connected it to my Garmin Edge 530 by re-adding the sensor.
However, by the time i went to the ride screen, it has disconnected again and won't connect to anything anymore...
Any ideas on the issue or how to resolve?
I bought this sensor over a Wahoo because the design looked to be long lasting, but failing just outside warranty period is pretty sad if that is what has happened!!