The furnace thermostat has no power

Resistance is the term for measuring how easy it is for an electric current to flow through a given material. Resistance is measured in Ohms (Resistance = Voltage/Current). A resistance of 1 Ohm allows an electric current to flow freely, while a resistance of 2 Ohms makes the passage harder.

The furnace thermostat has no power. A furnace thermostat is the home’s heating system’s control center. It regulates the temperature in the house and controls how much heat is sent to different zones of the house.

The heating system heats one zone at a time, starting with whichever zone has been selected on the thermostat as that day’s “heating-priority zone.” The furnace conducts heat from vents and registers in this zone until it has reached a specific temperature.

The first thing to do is verify that the power is not on. Try flipping the breaker in your basement or your circuit box if you are unsure where it is. If the circuit does not have power, you will need to call an electrician by phone or online for more assistance with the power.

Next, check if there’s a reset button on your thermostat controller. It may be a small button that resembles the power button and can only be seen when removed from its casing. If this issue persists after resetting, it may be time for you to replace your thermostat controller again, which would require paying someone professional for assistance and installation of new hardware.

Something blocking airflow in your home may cause the furnace to shut off without heating anything, but this can’t be verified without investigating further.


“Inspections, Installations, Repairs & Maintenance”