Garmin Forerunner 910XT

[Jigghead]

I've had my unit for over a year now and really enjoy it across a number of exercise disciplines.

 

However, every now and then, the unit measures my totals in terms of 1,000's of miles. Whilst this looks great it's extremely frustrating. I've taken the unit in to Garmin twice and they've replaced it twice (these guy's service is out of this world).

 

It's now done it again. My swim for example reads as follows:

 

23,796 miles in a time of 7hrs38mins46sec.

 

Now for the strange part. I have in fact since the last reset swum 23.79km and the time taken is correct.

 

Any ideas as to what is the cause of this and how to fix it? I don't want to keep getting this unit swapped out every time the reading go south, or north in this case!

[jplab99]

My 910 does the same. Where do you take the unit to get fixed/replaced?

Do you need to send it in or is there a walk-in shop somewhere?