Heat pump blowing cold air

I have the 5 button. I have 2 different units that have heat pumps and 1 unit that has a heat strip (wish I had thought it out as I would now have 2 with heats strips as the heat pumps appears to be just somewhat above useless!). We full time so cold is a normal part of our life and that means electric heaters and Webasto diesel heat is about all that works much of the Winter.
We replaced the existing old unit with an exact replacement new unit so the installer swapped the old control board with the new control board so it would still work with the old style thermostat.
Yes this is all on our 1998 Country Coach Prevost.