Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, my name is ***** ***** I am going to assist you with this.
What are the model and serial numbers of the genset?
Code 1902 is Under Voltage. It means that the genset is not producing enough AC voltage. This could be a rotor or stator issue, or a bad controller - all very expensive parts.
This unit is still under warranty until July 31, 2019. The best course of action here would be to contact an authorized Generac technician to have this repaired under warranty.
If you attempt to fix this yourself, you will void the warranty, and will be responsible for the cost of any parts.
If you don't care about a warranty, and want to buy your own parts, I will need a statement from you acknowledging that you understand that you will be voiding your warranty.
The rotor and stator are the main parts of the generator, and the engine is the third main part of the genset. The controller is what you are referring to as a circuit board.
The rotor and stator are not parts of the motor. The rotor and stator are the main parts of the generator.
The controller has no direct test. You rule out everything else first, and if no problem is found, then you replace the controller.
Yes the rotor and stator can be tested, but by digging in to the unit that deep, you will void your warranty.
If you need help finding an authorized technician, let me know your ZIP code.