Rep Power: 0

I purchased a 2008 Civic that has the 1.8L 4 cylinder this past summer the AC is working fine but now its getting cooler in Ohio and the heater is not working, this is the first time I have tried to use it. From what the previous owner told me the Engine was replaced at the dealership and everything else is working okay. I have checked every fuse in the vehicle, replaced the thermostat ,flushed the heater core with water both directions, removed the blower motor resistor and checked for continuity all the pins read okay . I am stumped . Any suggestions would be helpful.

 
Rep Power: 0

Update, I discovered the blend door actuator was completely missing, picked one up at the junkyard for free and now the heat is up over 100 deg.