1 unit fails to operate, 2 unit stops intermittently, 3 unit is inaccurate – AEC OFC Series User Manual
Page 27: 4 unit will not stay in control mode, 5 electrical connections, 5troubleshooting tips, 1 if the unit fails to operate, 2 if the unit stops intermittently, 3 if the unit is inaccurate, 4 if unit will not stay in control mode
