Set on and off timer for Samsung AC remote is not difficult if you follow my instruction in this video. There are on timer option and off timer option. This remote can only use count down timer. For example I want to off my AC at 7:00pm while it is now 5:00pm. So I must set it two our more turn off the AC. I can't set it directly to 7:00pm.

Please also check out below relate video

How to use Samsung AC remote control at the first time
https://www.youtube.com/watch?v=-KCpZZyw5Y8

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