A power receiving device includes: a placement portion; a power feeder including a coil; a thermal conduction member disposed at a location that is located between the power receiving device and the coil control of stopping power feeding by the power feeder a processor to perform control of stopping power feeding by the power feeder in a case where after start of power feeding by the power feeder at a predetermined timing, temperature of the thermal conduction member detected by the sensor satisfies a predetermined condition. the power receiving device is placed on the placement surface and having a higher thermal conductivity than the placement portion; a sensor to detect temperature of the thermal conduction member; and a processor to perform control of stopping power feeding by the power feeder in a case where, temperature of the thermal conduction member detected by the sensor satisfies a predetermined condition.