AndreaD. said "Plumbing AND Heating (HVAC).
Where the heck do you get the impression that plumbers can't do your air conditioning? HVAC is heating, ventilation, air conditioning. "
Where does it say plumbing in HVAC? lol
Plumbers recieve zero technical training in school to work on air conditioning. Just because they get a MOPIA liscence doesn't mean they're qualified to install, troubleshoot and repair AC.
Peopke who work at a salvage yard can get a MOPIA liscence. All it means is you're certified in the safe storage and handling of refrigerant.
Refrigeration and air conditioning is a compulsory trade meaning it's a red seal trade that you have to be signed on as an apprentice or a red seal journey person to work on and refrigeration/air-conditioning equipment.
It's not enforced as much as it should be but the fact is plumber might have an idea of how to install AC and possibly even repair AC but all of that knowledge has come from on job training non of it was taught in school.
Also plumbing isn't even a compulsory trade. Anyone can slap Joe's plumbing on the side of a truck and call themselves a plumber.
This has been discussed so many times. If you need your AC fixed call a refrigeration/HVAC technician.
Grand Valley or total fix are the two I would recommend.