Well, here's another idea. Please understand I don't know how the remote sensing feature works on the MF gear, but if there's a sensor window cover it.
If eliminating the remote quotient doesn't address the problem, and if you've already powered the unit off and on, then I'd say it's time to send it off to an authorized repair facility.
If eliminating the remote quotient doesn't address the problem, and if you've already powered the unit off and on, then I'd say it's time to send it off to an authorized repair facility.