Anyone work on FLEET Trucks??

[RyanM]

We Got a International 03 4200. Is having AC problems. CHECK AC came on again. Had a friend tell me to do the left turn signal and 'on' and 'set' buttons on the steering wheel. It took the fault code off, no more check ac light, but she is still blowing hot. Was blowing cold as ice until the other day. Has had AC serviced 3 times in the past 6monthes. Thanks

 

[nick86]

there have been many recallibrations concerning a/c probs. the fix you tried is when it's locked out & will not work untill unlocked, which you did. there had big probs with corrosion on the two thermistors on the pass side. but it prolly still needs the upgraded recallibrations from the dealler to fix. the prob was in the software & the thermistors readings being to sensitive. need anymore help, pm me I am a certified IH tech.