DeWalt DXGNR4000 error codes
1 codes from the official DeWalt manual (Owner's Manual for Portable Generator), each with the manual page. For 1 of them the manual says to contact an authorized service dealer.
Applies to: DeWalt DXGNR4000.
| Code | What it means | What to do | Service | Manual |
|---|---|---|---|---|
| CO PROTECT CO PROTECT shut-off, YELLOW light blinking | Engine shuts off due to a CO PROTECT system fault. A YELLOW light blinks on the side panel badge to indicate this. | Restart the generator to confirm the YELLOW light blinks when it shuts off. If CO PROTECT keeps faulting and shutting off, contact IASD. | dealer | p. 20 |
IASD: Independent Authorized Service Dealer, the brand-certified service company.
Source: official DeWalt manual, read 2026-11-05. "Owner" means the manual lists steps you can take; "dealer" means it directs you to authorized service. Fuel, gas and electrical work on generators is for qualified technicians; follow the manual's safety section.