My sensor is ac mains disconnected.
Anyways, your sensor indicates that your device has 24vac power. If you turn the 24vac off (usually by turning the furnace emergency switch off) then it should report the device does not have power.
My sensor is ac mains disconnected.
Anyways, your sensor indicates that your device has 24vac power. If you turn the 24vac off (usually by turning the furnace emergency switch off) then it should report the device does not have power.