hvac technician 3
https://myfurnacerepairscope.cloudhinter.com/posts/when-to-call-for-furnace-repair-signs-you-shouldn-t-ignore
The HVAC technician showed up right on time, a worn leather tool belt slung low on his hip. He knelt by the furnace, listening to its low hum for a moment before running a gloved hand along the ductwork. For him, each tick and groan of the system told a story, and he worked methodically, tightening a loose bolt and cleaning a sensor with a soft cloth. When the heat kicked on smoothly, he just nodded, wiped his hands on his jeans, and left the basement quiet again.