2023 International lt ac freezing over causing no airflow.

Semi truck air not coming out of vents due to freezing over coil. happens totally randomly. usually when window is open when driving but also happens when windows closed.

[@jokersoon7455]

Same problem here! Did you fix it?

[@owneroperatorlife4380]

What was the root cause? Air filter clogged?

[@YeOldeBum]

This is the exact reason i was moved from my last (brand new) truck into my new one (even more new). Now my new truck is doing the same thing. Ive notified my company numerous times about the old one, and now this new one. No fix so far.

[@timyim713]

Recheck Freon levels an check your interior cabin filter hidden under fuse panel.

[@ne7s29]

Filter is clean. The freon I'm guessing is low and therefor freezes over. It's low 30psi at 90f and should be close to 45psi at 90f. Prob was charged as a day cab not sleeper at the factory.

[@delomehunter]

I just went through the exact same thing I had tripped a fuse started working within minutes after resetting the fuse started melting ice and the vents started blowing full blast... Hope this helps

[@ne7s29]

Everything in my situation work no trip fuses all the actuators work I could feel them moving when I took the dashboard apart and you can hear the fan blowing the coil was frozen over because there was ice on the bottom of the HVAC box

[@delomehunter]

Exact same thing that happened to me actually just happened all I know is when I tripped the fuse back within 5 minutes I had full blow.. you had me thinking bad connection on the coil defroster maybe that was the fuse I tripped

[@yerzhan7475]

@@ne7s29I got the same problem, same scenario. Did u fix it?

[@Spearman2003]

How did you fix it?

[@ne7s29]

What I noticed is that the AC only freezes over when I have my window open and the AC is not set to maximum cold if it's two or three clicks up it will freeze over with the windows open but as long as I have it on the coldest setting to the left I can drive with the windows open and it doesn't freeze over probably has something to do with humidity and airflow in the position of the freeze over sensor in the coil

[@tcuda9469]

I’m experiencing the exact problem with the same outside temperature of 72 degrees… pos