Yesterday I used the A/C and was able to adjust the temperature up or down by using the cool and warm buttons. Today when I turned it on to auto on economy mode, I'm only able to get the warm button to work and can't get the cool button to take the temperature back down. I unhooked the battery to the car and hooked it back up thinking it might reset and it did reset to a temperature of 75, but again it is only allowing me to go up and not down with the cool and warm buttons. Do I need a new electronic climate control unit. I looked on line and found a company that you send your unit in and have it repaired for $275.00, http://corvettesalvage.com/index.php...roducts_id=887. And have found aCorvette Air Conditioning/Heater Control Face Kit, Electric, Coupe, 1986-1989 at Eckler's http://www.ecklers.com/corvette-air-...1986-1989.html for $99.99. Not sure what to do? Any help or advice would be appreciated.