Customer informed me the problem started December 16th 2025 when every gas appliance in the house would not operate She had the gas company come out to verify gas pressure to the home and a plumbing company to look at the water heater they looked in the attic and blamed the issue on the primary gas valve for the home being partially closed I tested the furnace through a few cycles in heating and it is operational Informed homeowner that we tested the furnace during initial installation on December 4th 2025 and it operated as it should so I do not believe we could have shut the gas off during the install Left thermostat set to 78 in heating on departure