Method for Sensing Condition of Inverter Module In The Microwave Oven

摘要

PURPOSE: A method is provided to achieve improved accuracy of detection of abnormality of inverter module and provide detailed description of faults and failures of inverter module to users. CONSTITUTION: A method comprises a step(S53) of checking the feedback signal input from an inverter module, and displaying an error message of oscillation abnormality if a feedback signal is not input during the preset start-up time; a step(S61) of displaying an error message of internal faults if a high feedback signal is input over a predetermined time period within the preset start-up time or after elapse of the preset start-up time; a step(S70) of displaying an error message of internal element damage if a low feedback signal is input over a predetermined time period after elapse of the preset start-up time; and a step(S82) of displaying an error message of current leakage if a low feedback signal is input in a stop mode.