Generac GT-990 — Activation process
Operation · Nexus controller
For the Generac GT-990, from the Generac service manual.
Applies to: Generac GH-410 engine, Generac GT-530 engine, Generac GT-990 engine, Generac GT-999 engine
Before you start
- If ESCAPE is pressed instead of ENTER, generator will only run in manual mode and NOT ACTIVATED will display.
Procedure
- Choose language with arrow keys; press ENTER.
- Press ENTER to begin activation.
- Obtain five-digit activation code from www.activategen.com or 1-888-9ACTIVATE.
- Enter passcode digits; press ENTER after each digit.
- Activation is complete when display confirms.
Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.