AC control issue
Thread Starter
Newbie
Joined: Nov 2013
Posts: 4
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W209
AC control issue
AC only blows cold air on low if you put it on 61 or lower it's hot like you have the heat on hi. Flaps are working to switch between floor defrost and vents in front. Anyone seen this before ideas temp. sensor?
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
low refrigerant can also cause odd issues like this. Check the pressures. Also, try the ACC test/reset procedure: simultaneously press and hold the RECIRC anf FRONT DEFROST buttons until their indicator lights begin to flash. They should continue to flash for about 30 seconds, then stop. Sometimes this can fix minor synchronization problems. If they don't stop flashing, then then you have a problem in the system, likely a broken damper linkage or servo.
Thread Starter
Newbie
Joined: Nov 2013
Posts: 4
Likes: 0
W209
low refrigerant can also cause odd issues like this. Check the pressures. Also, try the ACC test/reset procedure: simultaneously press and hold the RECIRC anf FRONT DEFROST buttons until their indicator lights begin to flash. They should continue to flash for about 30 seconds, then stop. Sometimes this can fix minor synchronization problems. If they don't stop flashing, then then you have a problem in the system, likely a broken damper linkage or servo.
