Smart Meter Error Code -01
Err-01: Control loop error - when the remaining amount is 0 yuan, the meter relay is disconnected, and the control switch is triggered to power off. When there is an abnormality in the switch or the electric meter, the electric energy meter can continue to use electricity, and the LCD will display "ERR-01" after decreasing by 1kWh; at this time, after the power is turned off, "ERR-01" disappears, and after continuing to run for 1kWh, the LCD of the electric meter displays "ERR-01". ERR-01", when the user purchases electricity, the overdraft electricity fee will be automatically deducted, and "ERR-01" will disappear.