I lost my F6 manual on how to set-up the my personal settings such as weight, height, age & gender.

Maybe the battery doesn't have enough power for the sounder.

click this link to download the manual
http://www.polarusa.com/us-en/support/downloads?product=&category=User+manuals

Make sure you have set all the other parameters correctly like your weight, etc.

In my tips and tricks page are 2 usefull tips.

#1) is a quick guide to setting your F6

#2) is a link to download the manual for free.

i cannot figure how to set my crane sports rist watch

The large A stands for age...when hit mode and that screen appears, hold the mode button until you see the number start flashing...Then use the buttons on the right to toggle to your age..then you can hit the mode button again to switch from the number to the F and you can change that to an M for a male...

The purpose of this is to let the watch know your gender and age in order to properly calculate your heart rate percentage..

5.1.3 TIME SETTING
If you start from the Time of Day display, repeat steps 1-3, page 38.
4. Press the / buttons to select TIME. Press OK.
5. Press the / buttons to select 12 H or 24 H time mode. Press OK.
If you chose 12 h mode, select AM or PM with the / buttons. Press OK.
6. Set the hours with the / buttons. Press OK.
7. Set the minutes with the / buttons. Press OK.

Hi,

To change any of the settings, press 'set' until 'settings' is displayed, press 'ok', now you can either set the heart rate manually in 'limit set' (press 'ok' to change the settings and press 'set' to change)
or input your personal data to let it choose heart rate settings itself in 'user set' where you input weight, height, age and *** (sadly yes please is not one of the options ;¬) )

if you go to www.polar.fi the user manual is on there if you need more clarification.

Hope that helps,

Andy

http://www.polarusa.com/us-en/support/product_support?product=276&category=Downloads&documenttitle=%0AUser+Manual+for+F6+in+English+9%2F2005-&document=/gip/PEUS1kb-public.nsf/web_cat/85256F470048B0BC852574730060F73F?openDocument

copy and paste this link in your address bar. It is your entire manual with reset instrucions

The only solution here can be: You have to completely reset your watch and then try to synchronize it again. In case if you've lost instructions, download them here:

www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages

On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.
If all this do not work, you'll need to find your nearest watch repair shop and ask for help.

Do not forget to rate please.