Oven common fault analysis and troubleshooting
Shanghai Shuang Xu Electronics Co., Ltd. Oven common fault analysis and troubleshooting methods (for reference only) 1. After the temperature in the oven rises to the set temperature, the power supply cannot be automatically cut off and the heating continues. From the working principle of the oven, it can be known that the temperature in the oven is caused by the work of the resistance wire. To make the oven temperature, it is necessary to require the temperature to rise to the set value, the resistance wire stops doing work; until the temperature drops slightly, the resistance wire can continue to work. In other words, the constant temperature of the oven within the set range is maintained by the automatic turning on and off of the input power source. If the temperature in the oven rises to the set value, the power can not be disconnected and continue heating, indicating that the relay contacts are not released. Remedy, please notify the company's technical department or by professional instrument repair personnel: Check whether the relay pull spring is off; whether the contacts are "burned" sticky together; whether the mercury in the electric contact thermometer is interrupted. 2. The temperature rise in the oven has not reached the set value and the power supply has been disconnected. 3. Can not warm. Turn on the power: 1 Observe the signal light. If the red light does not light, and after half a minute, the relay does not operate, and the filament of the electron tube does not light up, you should first consider that the AC loop may not be connected. 2 The red light is on, and the filament of the tube is not bright. 3 The filament of the electron tube is bright, but the relay does not move. BF914 Engine Spare Parts,BF4L914 Fuel Transfer Pump,Original Deutz BF4L914 Oil Filter Shijiazhuang Houfeng Trading Co.,Ltd , https://www.hfdieselengine.com