ap's not working after power outage

[SUZYRUS]

I'm having the same issue as so many others, after the power outage my Syst light is amber and the Pwr light is green and no power to my ap boxes .  I saw you suggested:

1-Please try to disconnect from the Power outlet the ICX-7150 and reconnected.

2-Please try to press the reset button using a paper click or a small stick 

1. Remove power from the switch.
2. Press and hold the Reset button while applying power to the switch.
3. After all the system LEDs flash amber, release the Reset button.

I am not tech savvy, I had someone set up the system last year when I purchased the house.  I would have no idea how to set anything up.  will doing the reset wipe out all the information in the switch.  And lose my passwords that were set up with all my devices?