I have a 99 sable with electronic climate control. I have a condition where there is hot air no matter where the temp control is set to. I had this same cond. a year ago with a code 025 displayed. Back then I replaced the blend door actuator & it seemed to solve the problem until today. Now the same 025 is displayed & after checking the code the system seems to reset & work correctlly for awhile ,til it malfunctions again. I find it hard to believe that the blend door actuator went bad again in less than a year. Any suggestions would be appreciated.