Head pressure in the coils, too much for comp to restart quickly into operating head pressures.....sounds to ME, there was a delay circuit in the control/stat? somehow to stop that, and it's not doing the job....allows outside comp to come on too fast.....
Y R U changing back/forth anyway??? we run overnight heat at say 72f in the house.....and we been opening windoze during the day.....except today it's much higher outside, but house is cool indoors yet, bright sunny day and over 90f in the atrium, but still only 72 in the house.....