What should I do first when using the YAP1F remote controller for the very first time?
When using the remote controller for the first time or after replacing batteries, you must set the system clock to the current time. Press the CLOCK button until the time blinks, press the up or down button to adjust the time, then press CLOCK again to confirm. (Page 2)
From the official Gree Yap1f IR Remote Control manual, page 2
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