Oliver, This question seems to come up every year and there are several on the list that have opinions and solutions. Here is what I have found. #1. If you have the blower motor or inside fan on 1 or 2 speed and the mode switch on max and your re-circulating cold inside the compartment air then the evaporator will have a tendency to freeze up faster and will shut on and off in trying to protect it's self. #2. If you put the mode switch on normal and draw in warmer outside air and leaving the blower motor on 1 or 2 then the cycling switch will not cycle as much. Also if you put the blower motor on a higher speed and blow more and warmer air over the evaporator coil then it won't cycle as much. It all boils down to moving air over the evaporator coil to prevent freeze up. John Hervey www.specialtauto.com -----Original Message----- From: standalonedump [mailto:stingray1963@xxxxxx] Sent: Wednesday, July 28, 2004 1:41 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] ac question hello list, my name is oliver and i am from germany. my car is vin 4575, formerly owned by dave and melissa sly (iowa). the car is running very well and is reliable but i have one problem. the ac is permanently switching on and off. it has been refilled a few weeks ago, which has stopped the problem for a few days but now the same problem as before. maybe it is helpfull to know that the ac is not switching on and off as long as the car is running on idle, i will start switching only while driving. any ideas? thanks and regards, oliver off list: info@xxxxxxxxxxxxx To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/