Thermostat Dead With No Power in a Chapel Hill Home
Chapel Hill · October 2026 · Jeorell · From our service records

What the customer reported
The homeowner reported that the thermostat had no power, including the alarm.
What we found and did
Jeorell found that the thermostat wiring was losing power between the furnace and the thermostat, and that the wiring was spliced. In the basement, he saw that the Carrier Infinity board was lighting up and receiving voltage, and the fuse was not popped. He verified 18v at R and C by the furnace, then checked R and C at the thermostat and got 0 volts. He followed the wiring as far as he could see it, into a crawl space area and up through the floor, and wrote up a quote to replace the thermostat wiring.


