On arrival all the zones were up to temp. He was 37 at an incoming temp of 32. Temp rise was 20.5 with et of 70. I performed a leak search. The leak search was inconclusive. I took a water sample. Replace tstat in the main area and programmed it. The old one was sending a emergency heat call when it wasn’t and it would register on the tstat. Changed some setting on the ewc board to make the stagging operate off the tstats and not the zone board timer. Changed the alpha pump to ramp speed 3. Geo btu output is with in operating limits and no refigernt leaks found. Left the manual for the thermostat on the table. Thanks Brad