What should I do if the temperature and humidity controller of the constant temperature and humidity machine shows abnormal temperature? The user will always encounter some faults during the operation. I don't know how to solve it. In order to promptly judge the fault and solve it by myself, Haida Instrument Technician will tell you how to deal with the temperature and humidity controller when the temperature is abnormal. First, the fault check steps: 1. Check whether the over-temperature protector of the control panel is set at 150 °C. 2. Check the circulation motor of the equipment room for damage; 3. Check the solid state relay with or without temperature part to burn out the short circuit: 1) If it is not burned, use the three-meter electric AC voltage file, the voltage gear position is opened to 600 volts, and the red and black rods are respectively placed on the AC side of the solid state relay marked with T, the temperature part The temperature setting value is set to 0 °C, and the indicator of the solid state relay of the temperature part will not light up. 2) If the measured voltage value does not change, maintaining below 10V means that the solid state relay burns out and presents a short circuit condition. Second, the solution: 1. If the panel over-temperature protector is not turned to the position of 150 ° C, or the temperature is increased by 30 ° C; 2. Notify the maintenance department of the purchased manufacturer to replace the circulation motor; 3. Replace the solid state relay of the temperature part or notify the manufacturer to go to the door for maintenance. What should I do if the temperature and humidity controller of the constant temperature and humidity machine shows abnormal temperature? If there is a temperature and humidity controller showing abnormal temperature during operation, the user should know how to solve it.