Haier HSU09VHG(DB)-W Service Manual page 26

15 HEALTH Button
Feature not available on this series.
16 Confirm/Cancel Button
Function: Setting and canceling timer and other functions.
17 LOCK Button
Used to lock buttons and LCD display
LIGHT Button
18
Turns indoor unit display on and off
RESET Button
19
If the remote control is not functioning properly, use a pen
point or similar object to depress this button to reset the
remote.
PAGE 26 REMOTE CONTROL FUNCTIONS