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Q : How to deal with the high temperature of the power unit / transformer in the HMI display?
A: Whether the heat dissipation fan at the top of the cabinet is reversed, whether it is faulty, whether the inlet filter mesh is blocked, whether the ambient temperature is too high, regularly clean the inlet filter mesh of the unit cabinet and transformer cabinet, and keep the environment clean on-site. 2 The temperature sensor is faulty, check whether the circuit is broken or short-circuited, and whether the sensor is damaged.
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