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.
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.
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.
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
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
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
@@empiretowing951 the AC coil inside the truck freezes over you have to turn on the heat for one or two minutes until the are starts coming out of the vents and then go back to AC try playing with taking fresh air outside or just doing recirculation in the truck
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
@SinisterJacob the fix is turn on heat for 2 min with fan high till u feel air blowing through the vents which means the ac coil unfroze. My friend on his new volvo has the same issue.
Recheck Freon levels an check your interior cabin filter hidden under fuse panel.
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.
I’m having the same issue. What I do is turn it off for about 30 minutes and it works again
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.
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
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
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
@@ne7s29I got the same problem, same scenario. Did u fix it?
Same thing just happened to my 24 International MV did you guys figure out what the problem was?
@@empiretowing951 the AC coil inside the truck freezes over you have to turn on the heat for one or two minutes until the are starts coming out of the vents and then go back to AC try playing with taking fresh air outside or just doing recirculation in the truck
Same problem here! Did you fix it?
What was the root cause? Air filter clogged?
After heat fan on its fix ????
@dhillon115 yes heat one for 2 min and then air flow starts again and all is good
I’m experiencing the exact problem with the same outside temperature of 72 degrees… pos
How did you fix it?
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
@@ne7s29what exactly was the fix?
@SinisterJacob the fix is turn on heat for 2 min with fan high till u feel air blowing through the vents which means the ac coil unfroze. My friend on his new volvo has the same issue.
@@ne7s29 thank you I did it the other driving out of Houston and worked like a charm