Stan's Heating and Air Conditioning had installed a new system for us when something went wrong. They came out and discovered it was not an air conditioner problem, but rather a problem with the electrical panel. And despite the fact that the unit itself wasn't causing the issue, they still fixed the problem with the panel, free of charge. I've always had great experiences with Stan's, ever since we had our older unit, where they would help patch it up and keep it running until they could no longer do so. The company is consistent, very professional, and quite prompt if you're in a pinch and you need someone quickly. They are excellent.