Sorry to say I have had nothing but problems with the Tireminders. The company was very responsive when on my second trip I couldn't get the unit to reconnect after removing the tow vehicle. They overnighted a new unit to the campground, and I was able to get it going. However, the last trip last year, the unit wouldn't update after the initial reading. I tried clearing everything this spring and tried again, but the unit acted about like you are describing. Two of the sensors seemed to work, but I could never get it to recognize the other two, and finally it got into a state that I couldn't get to do anything. It was well out of warranty, so I just gave up on it. I still have the sensors. I have an infrared thermometer, so I just check the temps every time I stop, which is about every rest stop. I'd feel better with a TPMS, but not willing to risk another $300 for another system. The people at Tireminder were very nice, and may have been responsive, even though the unit was out of warranty, but I was just tired of fooling with it. One big problem was the poor useability of it. I am a retired engineer, and my son, a programmer, and we would both be wandering around from the truck to the camper with books in hand, trying to figure out how to make it work. There didn't seem to be any way to completely reboot and clear everything out.
2010 Rockwood 8280WS Fifth Wheel
2013 F350 Crew Cab SRW, Standard Bed PS Diesel
Reese Airborne Pin Box, Reese 16K Manual Slider
Camped 28 Days in 2012, 23 Days in 2013, 29 Days in 2014, 30 Days in 2015, 9 Days in 2016