Daniel from A1 came out to investigate why my Carrier furnace would not light. He looked at it and immediately assessed that the gas valve was shoddy and the whole line was not to Code. He went to his truck and came back with an estimate of $940 to bring my gas line to code and it would require their Plumbing Dept to come out and complete a free safety inspection, but it would be the following week before they could come out. Frustrated, I sent A1 away and called AHS my home warranty provider. They sent Grace Heating &;;; Air who came out immediately and determined the control panel was defective and was routing 9.4V to the gas valve when it should receive none or very little voltage. Damon from Grace assessed the problem and had it repaired in 20 mins under warranty. Damon said there is nothing wrong with my gas valve or the line itself. Bottom line is that I paid $59 to A1 for nothing and $75 to AHS and got my problem fixed. People get a second opinion if you call A1 Heating & Air first or you will pay more and may still not get your problem fixed.