mamabear

Ok guys - he got to the shop today and they changed out the sensor. It worked, for about 10 minutes and now it isn't working anymore.

He has played with some of the wiring on it as well, and it started workin again for another 5 minutes and it is now not working again...

I gave him the list of the codes you posted, he is going to see what he can figure out there, but if you have any other suggestions - please let me know.

Thanks again!

Thanks guys. I will get with him this morning and review all this info and let you know what we find next.

I do appreciate the help - he isn't havin too much fun with the temperatures in FL right now.

Be glad to help you but need more information for diagnosis. Does the unit blow cold air just after being serviced? Does the system lose it's refrigerant charge? Does the binary, or trinary switch actuate shutting the system down. Does the compressor run for a short while then cease?

There are many indicators available to drill down to the affected parts or symptom and warm air when should be cold, is to vague.

Rob

Ok Rob - to get started, yes, it does blow cold air after being serviced. He said the system isn't showing that the refrigerant is being lost. He said he doesn't know on the switch question and as far as the compressor, he said it keeps blowing.

Hatcity - the filter was replaced within the last month. He has checked both to be safe on that as well.

Thanks for the help guys - he is in FL right now and not happy because he has no a/c and its in the 70s!

Ok guys, I have joined this forum to see if y'all might be able to help me help my man!

He is in a 2010 Mack and having a/c issues. It blows nothing but hot air. He has had it in the shop dozens of times for the same issue, but it still isn't being fixed. He can get down the road a few hundred miles and it does it again.

I am gonna be honest and tell you that I have no idea about vehicles, much less Macks - but I need to know if there is somewhere I can help him troubleshoot this issue.

Thanks!

D