Please help. Heater blowing cold air

[Luisitoyaris]

Please help my 2007 yaris sedan heater is not working it only blows out hot air. Cant it be the temperature knob thats broke? Or the heater core cloged up?
Also dose the the yaris have a heater valve?

[CTScott]

The Yaris does not have a valve for the heat.

Does the temperature knob have a bit of resistance or does it move very freely? If it moves freely, the cable assembly may have popped off the back of the knob.

[Luisitoyaris]

The Yaris does not have a valve for the heat.

Does the temperature knob have a bit of resistance or does it move very freely? If it moves freely, the cable assembly may have popped off the back of the knob.

Yeah just checked it and its a lil loose