1. Over-temperature protection. Solution: Turn off the power supply of the pressure cooker, and it is best to take out the inner container, and wait for 10-20 minutes to cool before reopening it. 2. There is a foreign object between the probe of the temperature sensor and the bottom of the fuel tank. Solution: Turn off the power supply, wipe the probe and tank bottom with a clean soft cloth, and do not have water or other large foreign objects.