Sync 2.0 / 3.0 (Evolution e-codes)
1100
Overcrank
Fuel · Alarm
The Gentek Evolution guide, which it says also covers Honeywell Sync 2.0/3.0, describes 1100 as the controller commanding a start, confirming that the engine is cranking, and not getting a start. It calls the usual cause fuel or maintenance, and says to confirm the fuel supply is on and, on LP, that the tank is not empty.
Seen on: Honeywell Sync 2.0 and 3.0 home standby controllers. Gentek's Evolution fault guide says this e-code list applies to those Sync controllers because they use the Generac Evolution control.
Likely causes
- Fuel supply off.
- Empty LP tank.
- Maintenance items that keep a cranking engine from firing.
Checks an owner can do
- Turn the fuel supply on.
- On LP, confirm the tank is not empty.
- Do not keep cranking after the controller has locked out.
When to call a pro
If fuel is available and 1100 remains, the guide points at maintenance items a technician should take from there.
Source
Wording follows that document. Firmware can change a threshold. If this page and the manual shipped with your unit disagree, follow the manual.
What fixed mine
No approved reports for this code yet. Send one. It stays in the review queue until it is approved.
https://generatorcodes.com/brand/honeywell/1100