| 摘要 |
PROBLEM TO BE SOLVED: To specify (determine) cause if an output value of a carbon monoxide concentration sensor is higher than a predetermined value in a fuel cell system, and to take an appropriate action.SOLUTION: A fuel cell system includes a controller 60 which determines whether or not there is abnormality in any one of a first combustion unit 26, a second combustion unit 28, a carbon monoxide concentration sensor 46a, or the surrounding ambient situation, from a first output value acquired by the carbon monoxide concentration sensor 46a when an ignition heater 26a or a combustion catalyst heater 28a is electrified, a second output value acquired by the carbon monoxide concentration sensor 46a before electrifying the ignition heater 26a or combustion catalyst heater 28a, or a third output value acquired by the carbon monoxide concentration sensor 46a after electrifying the ignition heater 26a or combustion catalyst heater 28a. |
