Good morning.
I have a Garmin Edge 810. 4years old. This past year my heart rate has started coming and going on my Edge. Sometimes perfect, sometimes nothing and sometimes a silly number like 65 bpm! I bought a new Garmin HRM-Dual, paired it up, and much the same, sometimes worse.... should I restart my Edge to factor settings or is there something I am missing.
i spit on strap, wet it sometimes but after a while ( like 5/10 mins ) look down and it’s not reading right... PLEASE HELP. Doing my head in... thank you.
Kindest regards
Tommy.