No Power To Thermostat: Wiring Problems And Solutions

One of the most common reasons for this is the unit isnt receiving power. Below, well explain what to do if theres no power coming to your thermostat (many of these issues are easy to. A thermostat with no power is inconvenient but often easy to fix with the right approach. Start with basic checks like batteries and wiring before moving on to more complex. Inspect the wiring connections at the thermostat and the furnace or air conditioner.