[pairodice]

Jeff, my coach is exactly like yours. I’ll try to test the valves to see which one control the AH heat loop to the engine as Richard suggested (checking the engine manifold gets hot). I must have the correct valves on for the engine as the Radiator/Engine are working as advertised and staying cool (enough) with the big hydraulic fan cycling between about 185 and 205… Thanks for the suggestions guys! I’ll be staying next week at the mothership so I may ask them to help me identify 1) which hose goes to the AH 2) which hose goes to the heater core 3) what is the best/easiest way to remove or fix the heater core as I would like to keep the dash heat if possible. I was thinking maybe I could cut out a big chunk of the black plastic on the top of the dash to give me room to reconnect/fix the hoses going to the heater core…