Analysis and Detection: Inspect the indoor unit of the air conditioner. The operation panel is set to "cooling" mode; after connecting the power, the indoor unit works but the outdoor unit does not work. It is determined that this type of failure is caused by a fault in the power circuit or protection circuit. No abnormalities were found when inspecting the outdoor unit; the refrigeration pressure was checked at 0.5MPa, which is within the normal range. When checking the indoor unit, it was found that the sensor before the evaporator had an open circuit. This transmitted an incorrect signal to the thermostat, preventing the outdoor unit from receiving the control signal. For Midea air conditioners, the indoor unit works while the outdoor unit does not work. Article source: Beijing Midea Air Conditioner Repair Center http://blog.163.com/mideaktiao_2012
Repair Method: After reconnecting and securing the temperature sensor, turn on the machine, and both the indoor and outdoor units operate normally.