This error means that the control is not seeing a valid reading from the light sensor. In most circumstances this is a sensor/wiring problem that needs to be addressed. Please see DOL’s Technical User Guide for some more information.
No. The ACT-1T uses the current sensor during the calibration process. If the ACT-1T is connected to a contactor that is switching the motors on and off, then it is not getting the current from the load, and will not calibrate or operate properly. In ...
Check if there are other temperature sensors assigned to control that equipment group. A temperature sensor in a different room or an outdoor sensor could be incorrectly assigned to control for that group and is being added into the averaging ...