To prevent by simple constitution the situation that grease applied to a mechanism part is solidified and generates an operation defect at the time of a low temperature.

For this temperature controller, in the case of judging by a comparison part 4, that an ambient temperature inside a device detected by a temperature sensor 3 at the time of activating an electronic equipment device 1 is less than a reference value, a control part 5 operates a mechanism driving part 2 for fixing time and the temperature inside the device is elevated by heat generation by the motor of the driving part 2. In the case that the ambient temperature inside the device does not exceed the reference value even after operating the mechanism driving part 2 for the fixing time, the abnormality of the device is alarmed by an alarm display part 6. At the time of the low temperature, since a load current is increased by the solidification of the grease, the driving current of the driving part 2 can be checked instead of temperature measurement.