1991 cutlass supreme climatecontrol

climate control are digital ,they work for10 minute then go to high fan andheat can anyone give me any info on the subject :banghead:
:banghead:

the digital climate control does have an on-board diagnostic on it. it stores codes to indicate problems with the air conditioner. if you push outside temp and bi-level at the same time it will show the codes if you have any. Hope this helps.