Did Willis Haviland Carrier face any challenges working on the Air conditioners?

Yes, Willis Haviland Carrier faced several challenges while developing air conditioning systems. One significant challenge was the need to control humidity in addition to temperature, as high humidity levels affected comfort and product quality. He also encountered technical difficulties in designing efficient cooling mechanisms and addressing public skepticism about the practicality and necessity of air conditioning at the time. Despite these obstacles, Carrier's innovations ultimately revolutionized climate control technology.