What to do if the screen of the Xiaomi Tabletop Dishwasher displays the E4 code?

The E4 code indicates a temperature sensor fault, which means the sensor can be damaged or the water temperature has exceeded the acceptable range. This issue can affect the Xiaomi Tabletop Dishwasher's ability to heat the water to the required levels for effective cleaning and drying.
To address this issue, please refer to the following steps:
1. Turn off the power to the dishwasher to ensure safety;
2. Shut off the water supply to prevent any potential leaks during inspection;
3. Avoid using the dishwasher until the issue is resolved, as continued operation can cause further damage or impact its performance. Additionally, contact the local after-sales service center for professional inspection and repair.