sensor+

I am working with a Sensor+ Dimmer rack with R25D2 Dimmers. They keep on failing. Either not actually outputting power or not outputting consistently. The person that installed the rack entered the dimmer types in as R20D units. Could this be causing my problems?

Is there any way to diagnose and fix problems with the sensor blades in the field or is that something i need to send them back to ETC for.