ok - i took the dash apart and it looks like all flaps and actuators are moving ok. Could it be something inside the heater valve? Or maybe a clogged core? Anyone ever heard of these issues? Anyone? Beuller? Beuller? thxdannebrog said:The unit is a warranty replacement, meaning it's probably a crappy reman unit. Not getting heat. Need to diagnose head unit or find heater valve and/or actuator. Any help is appreciated.