1059
UnclassifiedGeneral
What This Code Means
Output is < 50 Vrms immediately upon completion of startup voltage ramp; The unit has detected there is no output voltage while starting up
Possible Causes
- •Adverse starting conditions (e.g., very cold temperatures, low fuel pressure)
- •Brushes are miswired or faulty
- •Stator output voltage is less than 50 VRMS
- •The AVR is damaged
- •The DPE is producing no voltage into the AVR
- •The DPE winding is miswired
- •The brushes are arcing or worn
- •The rotor is shorted
Suggested Actions
- 1Check harness connections to AVR
- 2Perform Power Winding and DPE tests
- 3Perform Rotor Brush test
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 1059 on your specific Generac unit — cited to the OEM manual, not a forum guess.
GET THE ANSWER
Free account required — we'll bring your question with you.