Non-working liquid sensor: no light/response to tuning

The liquid level sensor doesn't work when powered on (the indicator keeps off when the liquid level reached the sensing point, and it has no response to the sensitivity adjustment.).
2025-07-24 15:26:36
Tonny12138
1. The sensor may not be in a good connection with the power source, please check the power connection.
2. The power cable may be reversely connected, please check it.
3. The power module is broken, change the power module and try again.
4. The sensitivity may be too low, increase the sensitivity to a suitbale value.
