COOKER

PURPOSE:To improve a product performance and reliability with nonfulfillment of cooking by a faulty relay for motion control accurately informed by providing a detecting means for a motion of the relay for motion control and a controlling means for turning on electricity to an indicator according to detection results. CONSTITUTION:A switch circuit 60 is composed of a series circuit of resistances 61 and 62 to which voltage produced in a resistance 34 is applied and a PNP type transistor 63 in which the resistance 62 is connected between a base and an emitter, and the operation of a relay 35 is detected. That is, when a disconnection failure occurs in the relay 35, it does not operate and a magnetron does not make a oscillation operation even if a transistor 33 is turned on with a relay drive signal sent from a microcomputer 20. And an electric current does not flow via a coil of the relay 35, consequently an indicator 41 is not turned on and a lights-out condition is made when a transistor 63 is turned on. This enables a product performance and reliability to be sharply improved with nonfulfillment of cooking and a disconnection failure of the relay 35 accurately informed to a user.