Heater troubles after heater core replacement

[BLoG]

As in, the air blows cold. Heater core gets hot, but the air still blows cold. Also, the temp knob on the a/c panel won't turn all the way back left anymore. Ideas?

 

[Red 93 L1 #3383]

Sounds like the cable for temp. control is out of adjustment, or something is keeping a door in the heater box from opening/closing. Hope you find your problem.

 

[paul12]

I agree with the idea that the door is not closing. I just replaced my heater core and radiator while the board has been down. I cant think of anything that could cause this except the door not closing.