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44 Forerunner 405CX Owner’s Manual
Appendix
Troubleshooting
Problem Solution/Answer
The bezel is not
responding to my taps.
Unlock the bezel: press enter and quit simultaneously. Press
rmly on the bezel for the best results. Tap the outer ring on
the bezel, not the inner ring near the watch face. Adjust the
sensitivity setting (see page 30).
My Forerunner never
gets satellite signals.
Touch and hold GPS. Make sure GPS is set to On.
Take your Forerunner outside and away from tall buildings.
Remain stationary for several minutes.
The battery gauge
does not seem
accurate.
Allow the Forerunner to fully discharge, and then fully charge it
(without interrupting the charge cycle).
The heart rate monitor,
foot pod, or GSC 10
will not pair with the
Forerunner.
Stay 10 m away from other ANT+ accessories while pairing.
Bring the Forerunner within range (3 m) of the sensor while
pairing. Restart the scan for the accessory (see page 33). Make
sure the accessory is sending data (for example, you need to
be wearing the heart rate monitor). If the problem persists,
replace the battery in the accessory.
The heart rate data is
inaccurate.
See page 34.
The heart rate monitor
strap is too big.
A smaller elastic strap is sold separately. Go to
http://buy.garmin.com.
Some of my data
is missing from my
Forerunner.
The Forerunner overwrites the oldest detailed data if you do
not transfer it to your computer. Transfer data regularly to avoid
losing data.