You need not worry about thermostat wires electrocuting you since they have a very low voltage. However, the other cables in the circuit are dangerous and can shock you if you’re not careful.
Many of our readers may want to know how to check thermostat voltage.
The simplest way is to use a multimeter to give you the correct reading. Set the reading to Volts and AC and test the voltage coming down to the thermostat.
Place the red pin on the R terminal and then place the black on the C terminal. If the multimeter registers anywhere from 25V to 27V, you’ll know that your smart thermostat is all set and working in perfect condition.
And that concludes our post on how to figure out why there’s no power to thermostat wires.