Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Code 1205 means that the engine is running too fast. There are several things that can cause this.
But your unit is still under warranty until Jan 1, 2020. If you attempt to work on this yourself, you will void your warranty.
Your best option is to contact an authorized Generac repair facility, and have them repair it under warranty.
If you need help finding your nearest Generac repair center, just get me your ZIP code.
Did you decide what you are going to do?