I have an MRF-350/RFX-250 with the MX-980. I've been trying to figure out which item is defective and needs to be replaced as it seems to work intermittently. I've unplugged the power to the MRF-350 to "reboot" it and thought things were working better but recently noticed a time when pressing the remote buttons didn't cause the status light on the MRF-350 to light. I've also turned the MRF-350 to ID#0 and don't see any blinking of the status light on 250 or 350 without any button pressed.
Any tips on how to determine which item is defective?