Heat tune up I checked everything around the furnace and made sure there was no major problems. Everything was good to go no gas leaks or carbon monoxide. The filter was good. I then found a gas leak on the water heater gas line. It was the union leaking gas out I did confirm it with the soap bubbles. The client had left for a doctors appointment and the mother was there I went over the full report, I couldn’t reach out to the client but will send all the information and the mother will let her know about the problem. Job complete