30 ENGLISH
...the buttons do not react?
Reset the wrist unit by pressing and holding both buttons. The
display should fill with digits. By pressing any button, the wrist
unit goes to Basic Settings (SETTINGS is displayed). When
you have completed the Basic Settings, the wrist unit returns
automatically to the Time of Day display. If this does not work,
have the batteries checked. For more information, see chapter
7 Care and Maintenance.
...the wrist unit battery needs changing?
We recommend that all service be done by an authorized Polar
Service Center. The two-year International Guarantee/Warranty
does not cover damage or consequential damage caused by
service not authorized by Polar Electro. Polar Service Center will
test the wrist unit for water resistance after battery replacement
and make a full periodic check. Alternatively, you can replace
the battery yourself. For more information, see chapter 7 Care
and Maintenance.