There is a LOCK button on the remote controller:
Press this button with a thin stick, then you will find a lock icon on the remote display screen, this means that the remote is locked. Under this function, the remote couldn't be operated, this can prevents childern's mistake operation.
Press this button again can unlock the remote.
Haier Malaysia Careline:
Sanyo Malaysia Careline：
Mon to Sun
24 Hours / 7 Days