Yesterday my 1988 560 sel's Automatic Climate Control is not working. It seems like it is stuck in low fan but some heat is blowing. If you turn it off it still runs. If you put it in defrost, it stays the same. No changes when any button is hit. Also the recirculate switch is not working also.
Is it the push button control unit or the relay. Does it goe to this mode if the relay is blown.
Thanks in advance...