ac fan

[KPS]

Hi,

for some reason if i put it on econ mode on any temp it blows out coolish air (need to get ac re-gassed) but when i dont have it on econ mode i can hear it running and nothing blowing out but every so often prob 5 mins or so it blows out very nice cool air. i believe the air conditioning flap may be faulty, any thoughs? But then why in econ mode does it blow constantly but sporadically when not in econ mode? Thank