Honda EU3200i error codes
4 codes from the official Honda manual, each with the manual page. For 3 of them the manual says to contact an authorized service dealer.
Applies to: Honda EU3200i.
| Code | What it means | What to do | Service | Manual |
|---|---|---|---|---|
| CO ALARM indicator CO ALARM indicator (CO-MINDER shut-off) | CO-MINDER detected a high carbon monoxide concentration around the generator and stopped the engine. The indicator flashes for about five minutes. | If you feel sick, evacuate and get fresh air. Move the generator to a well-ventilated outdoor location away from buildings and vehicles, then press the CO-MINDER reset button and restart. Do not restart without pressing reset. If it still will not start, consult an authorized dealer. | dealer | p. 22 |
| FAULT/CO SENSOR LIFE indicator FAULT/CO SENSOR LIFE indicator (sensor end of life) | The CO-MINDER sensor is nearing the end of its useful life. Flashing once every 4 seconds means about 6 months to 1 year left; once every 2 seconds means about 6 months or less. | Contact an authorized Honda Power Equipment dealer for CO-MINDER replacement. | dealer | p. 23 |
| Oil Alert/Check Indicator Oil Alert/Check Indicator (red) | Engine oil has fallen to an unsafe level, or the engine has overheated. The engine stops automatically with the engine switch left ON. Tilting the generator can also trigger it. | Check the engine oil level with the generator on a level surface before troubleshooting other areas. If the indicator blinks continuously, contact your servicing dealer. | dealer | p. 27 |
| Overload Alarm Indicator Overload Alarm Indicator (red) | Generator overloaded (over 3.2 kVA) or short circuit in a connected appliance. The indicator stays on; after about 10 s (overload) or 5 s (short circuit) AC output shuts off while the engine keeps running. | Reduce or disconnect the load and find the cause. If the indicator blinks continuously, after removing the cause press and hold the Eco Throttle switch for more than 3 seconds to reset. Stop the engine and investigate the problem. | owner | p. 27 |
Source: official Honda manual, read 2026-11-01. "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.