1. It is possible that the sensor is broken, including leads, plugs and sockets. The treatment method can connect a 100K resistor in parallel at both ends of the sensor, including the lead.

2. The weather is too cold and the sensor resistance is too high. The processing method can connect a 100K resistor in parallel at both ends of the sensor.

3. Sensor short circuit: Sensor short circuit fault is rare. Generally, only new ones can be replaced (the sensor is 100K at room temperature of 25 degrees).

4, overtemperature: the bottom of the pot is too dirty and the temperature is too high.

5, pressure switch failure.

1, the indicator light is not on, which may be that the heating plate is overheated or the heating plate is not heating. The reasons are: the power supply is not connected well, the circuit board line is faulty, the power supply line is faulty, and the motherboard is faulty. Solution: Check the power supply of the switch box.

2. The heating plate is not hot. It may be that the heating element is damaged, or the bottom thermistor is damaged, or the power line circuit board is faulty. Minor problems will be sent to maintenance, and if there is a problem, they will be replaced.

3. The rice cooker drips water. After the machine is turned on, it will automatically turn off as soon as it is turned on. If it is repeated, the relay will also ring randomly. At this time, check that the power supply voltage is only 8 volts, and the capacitance of the measured step-down capacitor is only 0.2UF (it should be 1.0UF). After replacing the capacitor, the voltage returned to the normal voltage 18V, indicating that it was a capacitor problem.

4. The cooking is not ripe, or the cooking time is too long, which may be because the inner pot is not put away properly, or the electric heating plate is deformed, or the main board is faulty, or the thermostat is abnormal; Check one by one and eliminate one by one.

5. If the porridge overflows, the sealing ring fails or the motherboard fails, replace the sealing ring or motherboard and retest.

6, cooking coke and can't automatically heat preservation, thermoelectric sensitivity failure or motherboard failure, replace the resistor or motherboard, test.