There are two major causes of AC mode switch failures. Most common is the detachment of the rubber vacuum deflector which results in partial or non-operation of the air deflector flaps inside the air plenum. Recently we have discovered a new problem. The rotating assembly center shaft will crack from age and wear causing the switch to disassemble. These controls are repairable but you may want to consider a new purchase. The replacement switches have an additional contact that engages the AC compressor when the defrost setting is selected; very useful for defogging. "We're here to help you" DMC Help / De Lorean Services / <dmchelp@xxxx> Web Site: <www.deloreanservices.com> ----- Original Message ----- From: <RJRavalli@xxxx> To: <dmcnews@xxxxxxxxxxx> Sent: Tuesday, October 31, 2000 7:05 PM Subject: Re: [DML] My defroster switch exploded! > I don't know about a defroster switch exploding, but when I > bought mine I found that it wasn't working...it just teeters to one > side and doesn't "click" to go on or off. Would anyone else know > how to fix this? > > Please e-mail at RJRavalli@xxxxx It's one of the many "small" > repair issues I will be asking about in the future. > > RJR