一、红外线灯泡不亮红外线灯泡损坏,更换红外线灯泡;热敏电阻(常温电阻值为10kΩ)不良或焊线假焊、断裂,更换热敏电阻或补焊。二、调温失效热敏电阻线路不良,更换热敏电阻或补焊;温控电位器损坏,更换电位器;温度计损坏,更换温度计。三、投影屏内无光小灯泡不亮或损坏,更换小灯泡;水分仪微动开关故障,修理微动开关;保险丝松动或损坏,旋进保险 First, the infrared light bulbs do not light Infrared bulbs damaged, replace the infrared light bulbs; thermistor (room temperature resistance is 10kΩ) or welding false welding, broken, replace the thermistor or repair welding. Second, thermostat failure thermistor circuit is bad, replace the thermistor or repair welding; temperature control potentiometer damage, replace the potentiometer; thermometer damage, replace the thermometer. Third, the projection screen dim light bulbs do not light or damaged, replace the small bulb; moisture meter micro switch failure, repair micro switch; loose or damaged fuse, screw into the insurance