AC Stuck on Defrost

[LowandUseless]

So I switched out the Blend door I believe it's called. But that only allowed the temp to change. Anyone know the name of the part I need to replace to allow it to blow through the vents and floor and how to do it? Thank you!

[desrtrat]

did you disconnect your battery when you did the work?.

[SouthCo]

Was it stuck on defrost before you replaced the blend door? If not and u disconnected the battery like desrtrat asked, you might try the recalibration...

[txab]

They are all often lumped under "door actuators". You need to just look at the description for each. What is this on?

[gmtech4]

mode actuators ,,,,

 

sometimes the dash has to go and htr box removed ,,,,,

 

you may want to confirm with a scanner

 

not a DIY job sir

[LowandUseless]

Yes I disconnected the battery many times. It never made a change! Yes it was broken before I switched out the blend door.

[txab]

What vehicle is this on?

[LowandUseless]

99 Silverado 1500

[txab]

Go to gmpartsnow and plug in your model and search "mode actuators"