TomTom Runner 3 display
I've had a tomtom runner 3 for a few months, & love it, but recently on runs, the live pace display has become erratic. For example, my normal running pace is usually between about 8:15-8:30 ish per mile, less if I'm in very good shape at the time. And the watch used to hold these readings quite consistently.
But now it is starting to give readings of well over 9 mins, 9:30,9:45, then about 8:45, 8:00, (more realistic for a moment) but then goes back to a reading of over 9 mins again. I've even had a reading of over 10 mins per mile pace when I haven't slowed!
These fluctuations in pace happen when there has been very little or no change at all to the level of the ground I am running on, nor have I altered my pace. And this happened again the other day when I actually felt quicker.
However, when I sync the watch with my phone after the run, the split averages for the miles look okay, in the eights & high sevens where I expect them to be. (As we know, the watch will calculate my distance with the total time it took). So it seems that it is just the display which is showing these strange fluctuations in live pace.
But it is still annoying when I can't visually get an accurate live pace, so don't know how quick I really was until I finish & sync.
I don't know why my watch has started doing this, it didn't used to. I've tried wiping the back, thinking maybe it was a bit of dirt/sweat on the sensor, but this hasn't helped much.
So does anyone have any idea what may be causing this, had any such problems yourselves? I just hope it isn't a case of me sending my watch back for a replacement or repair. I've had it for only about six months.
Any advice or ideas will be welcomed.