Home Standby Control Panel Firmware Updates
Firmware cannot be manually updated by the end user, and Generac does not publicly offer downloads for generator control panel firmware. Evolution 2.0 and Sync 3.0 controllers will automatically apply updates if there is sufficient signal in the network connection. Older control panel models require a dealer visit to update the firmware.
Environment
This information applies to Generac and Honeywell air-cooled home standby generators that feature an Evo 1.0, Evo 2.0, Sync 2.0, or Sync 3.0 control panel.
Firmware Update Details
- Firmware is not available to end users for download
- Only Evolution 2.0 (and Sync 3.0) controllers have the ability to update firmware remotely via Wi-Fi (air-cooled generators built approximately June/July 2018 to current)
- All other control panels require a dealer onsite with a USB to update
- If a firmware update is required it may entail a service charge from the dealer to do so
For generators with an Evolution 2.0 controller, it is recommended to have a minimum of 30% or higher signal strength in order to reliably download firmware updates. If the signal is weak, generator owners may experience issues getting the firmware updates. If the signal cannot be improved, a dealer may be needed on-site to update (this would entail a service call and cost to update that firmware). Firmware updates are considered maintenance and are not covered under a generator's warranty. Please consult a local dealer in regard to pricing to complete the firmware update that is needed
Control Panel Firmware Versions as of January 2023
HSB Air Cooled
- Evolution 1.0 (panel 9) = 1.21
- Evolution 2.0 / Sync 3.0 (panel 21) = 1.18
- Evolution (panel 12) = 1.48
Synergy/EcoGen w/G-flex
Liquid Cooled
- Evolution ECM (panel 22) = 1.11
- Evolution (panel 12) = 1.52
