What happens if a dSM is defective? digitalSTROM Support September 26, 2018 07:05 Updated Follow Devices without digitalSTROM functions are not impaired in their function. digitalSTROM devices can still be switched via their local push-buttons (e.g. a floor lamp with cord dimmer). The dSM must always be replaced in this situation. Related articles Does a digitalSTROM meter (dSM) have to be reconfigured after an exchange? The dSM flashes and shows a different colour than green? Is the dSM equipped with surge protection? Why are there only digitalSTROM meters dSM up to 16A? What does the colour of the LED of the dSS mean?