Hello Alexandr,
I think there's an typo on the install guide and "On Red" should be "On Amber".
Quick install guide implies it has Green and Amber colors only on the led.
![117639c9f8574431aef61c21411beaed_RackMultipart20161220-25782-1xt66fd-3805i_led_inline.png 117639c9f8574431aef61c21411beaed_RackMultipart20161220-25782-1xt66fd-3805i_led_inline.png](/t5/image/serverpage/image-id/4522iD0F3DBA3B51E8485/image-size/large?v=v2&px=999)
Install guide for AP3825 says amber means a failure as below.
![117639c9f8574431aef61c21411beaed_RackMultipart20161220-58747-5pla44-3825i_led_inline.png 117639c9f8574431aef61c21411beaed_RackMultipart20161220-58747-5pla44-3825i_led_inline.png](/t5/image/serverpage/image-id/4135iCCF3722AC0D23015/image-size/large?v=v2&px=999)
So how about open a case and I think this will probably be subjected to an RMA.
Thank you.