Frozen A/C and no air
Hoping I can get an answer to this. The fan on the A/C unit is running (I can see it spin just like the other units). The weird thing is that there is no air coming inside my 3 floor townhome. I checked the air-filter and to my surprise, the grill is frozen solid! I've done some reading on-line and I've defrosted it by letting it sit (A/C turned off) - see picture. I thought the problem was solved after totally defrosting it (and then some) but when I turned it on, to my dismay, STILL no air coming into the unit. I'm in Texas and it's HOT!
Can anyone help? Would really appreciate any advice