| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply device capable of surely detecting occurrence of shift failure of a temperature sensor related to hot water pouring operation, in the hot water supply device with a high-temperature hot water pouring function.SOLUTION: When both of an abnormality determination condition that during hot water feeding operation in advance, the difference between a setting hot water feeding temperature value and a detection hot water feeding temperature value of a hot water supply temperature sensor almost approximates to each other and the difference between the detection hot water feeding temperature value and a detection value of a bath route temperature sensor is 10°C or more, and an abnormality determination condition that during hot water pouring operation (YES in S21), the difference between a detection hot water tapping temperature of a can body and the detection value of the bath route temperature sensor is 10°C or more (YES in S22) are established, it is determined that shift failure occurs in the bath route temperature sensor, and the hot water pouring operation is forcibly ended. |
