Unit blinking 888, won't turn on

The power went out at my apartment a few nights ago and now my cube just blinks 888 with all lights flashing whenever it's plugged in. I contacted the site help and they sent me a link to the Cube power supply repair kit and power replacement guide. Has anyone successfully done this? I tried calling around in my area but apparently no one does small appliance repair anymore. Am willing to try it but not sure I want to spend the money if it's hopeless.

I did it! the guide was very helpful. The only thing I struggled with was getting the wires labeled CN2 and CN3 to unlatch. They have a blue protector that needs to be slide up to expose the latch, and then the metal tab can be pushed to release them-- I used tweezers, but needle-nose pliers would probably work better. Once I replaced the power board I put in the cleaner and distilled water and ran on High for a couple hours. Unit is now back to normal.