NO heat.

[Whapack]

Hi, Theres no heat blowing so I replaced the passenger and driver side blend door actuator 2 days ago. There was heat after replacing it. And today when I turned on the heater, theres no heat. What else could be the problem?

 

[ProjectSHO89]

First thing to do is to ALWAYS check to se if there is HOT coolant circulating through the heater core. Without that, there's nothing for the controls in the dash to use.