The technician Dave O. #1685 was great, he arrived on-time quickly diagnosed the issue, broken gas valve. He explained what he was doing, and explained why he was certain the gas valve was the issue, unfortunately he did not have the part on hand, however, he did order, and explained the whole process, let me know what I had do when the replacement part was shipped to me. Dave O. #1685 happened to be the same tech sent out to replace the valve, again he showed promptly, gave me a call ahead of time, quickly replaced the part, did a few test and stuck around to make sure that everything was working. My overall experience with Dave was great, he was very knowledgeable and friendly and was able to quickly diagnose and correct the problem. A+