AYRE K-3 - Manual (Page 20)

6. Ayre does not authorize any third party, including any
dealer or sales representative to assume any liability of Ayre
or make any warranty for Ayre. The unit must not have
been altered or improperly serviced. The serial number on
the unit must not have been altered or removed.
7. Warranty registration cards must be completed and
mailed to Ayre within 30 days of purchase. Ayre may, at its
option, require from the purchaser valid proof of purchase
(dated copy or photocopy of dealer’s original invoice).
Page 18