You can check the electrical system and troubleshoot one by one. If the temperature rises too slowly, the wind circulation system needs to be checked to check if the wind circulation is normal. Otherwise, check whether the motor operation of the wind circulation is normal. If the temperature overshoot is too large, you need to set the PID parameters. If the temperature rises directly, causing over-temperature protection, then the solid state relay has broken down and can be replaced. Cooking Equipment,Stainless Steel Gas Fryer,Restaurant Electric Stove,Comprehensive Gas Furnace Guangzhou Nernst Catering Equipment Co., Ltd. , https://www.nernstcatering.com