Syncview, thanks for a reply. At DEF position, no air comes from other vents but Cool air is verified from DEF outlets. And when I turn the blower knob to Face position, the ac is switched off but cool breez can be felt for few seconds.
Moreover, after doing this practice (turning ac on at DEF position and then switching off ac manually, and then tuyrning blower knob to face position and switching on ac), it works sometimes but ac switches off after sometime automatically, even ac light is on.
Help requested dear pakwheelers....