A multifunctional tester for an air condition controller

The utility model provides a multifunctional tester for an air condition controller, which can integrate a plurality of testing functions, improve testing efficiency, and optimize resource utilization of a test system. The multifunctional tester for an air condition controller comprises: a singlechip MCU, and is mainly based on the MCU as a main processing element; the singlechip MCU can change data information provided by a periphery circuit thereof into display signals and generate electromotor analog pulse signals which are output to a tested controller; a display circuit; a motor signal reshaping and testing circuit for reshaping the motor analog pulse signals provided by the tested controller and transmitted to the singlechip MCU; an electrical level testing unit for testing actuation state of each relay of an air conditioner; a correcting circuit of a voltage detector for simulating thermometer bulb sensing signals and transmitting the signals to the singlechip MCU; a voltage-stabilizing power circuit for converting alternating current output by a transformer into stable direct current power supply employed by the system, and providing working voltage for the singlechip MCU, the display circuit, the electrical level testing unit, the motor signal reshaping and testing circuit.