I have a 2014 Hot Springs Grandee. The remote has stopped working. I’ve replaced the battery and rebooted but has not worked. Dealer says it has to have a new controller, dock and control box. All 3 have to be “on the same platform code (I.e., V4.XX)” (not sure what that means), “and are not interchangeable with previous codes”. It would cost $2500! I can control lights and jets with the buttons on the dock, but not the temp. It seems to default to 106. Is there a way to set the temp to a lower setting without the remote?