The Linorite Solar automatic measuring and control instrument only displays the lowest and highest w

1 There is too much rust on the temperature sensor head in the solar water tank, so clean it with your hands.

2 The head of the solar temperature sensor is broken, i.e. the probe.

Replacement method: The bottom of the indoor water level meter can be opened. After opening, unplug the wire. Remember there are red marks on the line, please align them when changing. Red line versus red line.