Polar FT4 Question

stefanie5757

I have read thru all of the posts and I have done everything I can think of but it tells me shortly after I start working out and getting a good sweat on that it cant find the transmitter. The treadmill at this point also stops reading my HR.
*I changed both batteries
*may sure it is good and wet, plus i sweat a lot
*make sure it is tight

Is there such thing as having it too tight or too wet? It is just irriating. I have had it for just over a year and just recently started having problems so thought it was the batteries, but it is still happening. I am beginning to think that it is just faulty.