Polar FT4 keeps saying "Check heart rate transmitter" in the middle of workouts
Hi, my Polar FT4 keeps saying that I need to check my heart rate transmitter in the middle of workouts. I try making sure the strap is tight enough and readjusting myself so I can get back into my workout, but it still gives me that message and it is very frustrating when I am trying to work out. Does anyone know what the…
