Polar cs200 giving trouble.. any idea whats the problem?

[slayer 83]

Hi all,

 

I've had the Polar cs200 since mid 2010, done +-5000 km. Never had any issues until today.

 

It works perfectly but when I reached 60km on my training ride it stopped reading the speed, then it will show the speed again but like at 5km/h for a minute or two, then it will be fine again for a while until it repeats the same problem.

 

At one stage the whole computer just reset while I was riding, forcing me to have to re-enter the time, rider info, etc.

 

My heart rate and cadence work fine.

 

And I did try and adjust the magnet on the spokes and I replaced the battery of the computer last week. The fact that the computer reset itself makes me think that the problem lies with the computer and not the speed sensor or magnet.

 

Any advice or similar problems experienced? Would like to hear before I send it in to Polar.

 

Thanks

[Musashi]

Both mine and my wife's CS200's gave similar issues after 1.5 to 2 years of use. Replacing the battery didn't help. Now I use a Garmin.