I have a Honda Accord Station Wagon with internal heating problems.
When I bought the car their was a faulty AC/Climate control unit. I have had that replaced, but there still appears to be no heat coming through to the cars interior. Even when the temp is turned to 32 degrees the blower send through cold air! Is there something else that could be causing this problem? The car radiator works fine, and I haven't had any problems with it over heating.
It could be a thermostat stuck open or more likely there is an air vent door that is not oppening. It allows hot air to pass from the heater core. You will have to take apart the heater box under the dash center and look for the door by the heater core and see if it is mechanically dmaged on its pivot points or if the actuator is not opening and closing the door.