I have a 2008 sit hatch witrh a heating issue, i have used the diagnostics table that was kindly given to me and this is what happens , the a/c light blinks every second and this says that there is an open circuit i think, can anyone advise how i sort this please also while in diagnostic mode if i move the fan speed to position 3 the recirc light also blinks every second, any help would be much appreciated