I have a Carrier Furnace/AC unit. I recently had the board replaced because the furnace wouldn't come on. The technician said that it needed "indoor coil cleaning". He wanted $350 to do it, but said we could do it ourselves but it would be a lot of work. He said to buy a special brush, use simple green, and be very careful to not bend the fins. I don't know for certain what I need to take apart to get to the indoor coils. Picture attached for reference. Any help would be greatly appreciated.
Need to delete that icon of a picture you posted, and put in post a real picture.
__________________ Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?