Generac GP15500EFI code 1-2
What it means: Battery voltage is above the normal operating range.
What to do
Contact an IASD.
When to call service
The manual directs you to an authorized Generac service dealer for this code if the steps above do not clear it. A warning: the unit may keep running, but the cause needs attention.
Source: official Generac manual, page 9, read . Summary of the manual, not a reproduction.
Models this manual covers
Generac GP15500EFI, Generac GP18000EFI.
Other GP15500EFI codes
Questions
What does Generac code 1-2 mean?
Battery voltage is above the normal operating range. (Generac manual for the GP15500EFI, page 9.)
How do I fix Generac code 1-2?
Contact an IASD. The manual says to contact an authorized service dealer if it continues.
Fuel, gas and electrical work on a portable / inverter generator is for qualified technicians; follow the safety section of the manual. All 6 GP15500EFI codes →