Any warning sign that repeats, gets louder, or creates smell, smoke, leak, or ice deserves prompt attention

https://www.livebinders.com/b/3725570?tabid=dd62d704-2026-5967-d971-d05241fc177d

Any warning sign that repeats, gets louder, or creates smell, smoke, leak, or ice deserves prompt attention. Turn the system off if needed and contact a licensed HVAC expert.