HVAC technician came and seems to have required my Lennox AC attic unit. He left in a rush and now the company won’t call me back.

Pics 1 and 2 are before. 3 is after.

Looking to understand the difference between the before and after pics. Our lennox outdoor unit wasn’t turning on and we had no AC the last few days. The tech came and looked at the outdoor unit and then went up to the attic to check on the air handler. He came downstairs and hastily said “you need a new blower motor” and left. Now they won’t call me back so I’m trying to understand what happened before I call another company.