Thinking more on this, whether they come out or not, just the fact that they gave you no definite time & the way the AC lady is handling it should be reported to the board no matter what.

IMO, the boars should be hiring a reputable HVAC company, not some 70 year old retired HVAC person. He can find enough odd jobs around the community. A HOA with people depending on good service should be able to depend on a good HVAC company to take care of their problems. That is NOT the place to cut back on spending what they get in dues.

Don't wait for some other person in the association to complain. Your complaint is more than valid to make the BOD aware of what is going on. Be a responsible homeowner & make sure they know.