Replaced the whole unit. removing the dispenser display was most difficult. prying through small hole with screwdriver made the display bend. I was concerned about it cracking. several easy prys and it did pop loose.
Had to take special care to make sure wires and water tube were back in proper locations before reassembling. looked like the lever is a bit tilted, but didn't see any other way Route could be installed. Tab is in slot, screw holes line up.