No Heat in Columbia, SC
Nothing happens when the thermostat calls for heat, or it runs but never gets warm. Most common on the first genuinely cold night of the year.
What usually causes this
- A dirty flame sensor or a failed igniter on a gas furnace
- A dead thermostat battery, or a breaker tripped over the summer and never reset
- A dirty filter blocking airflow badly enough that a safety switch shuts the furnace down
What to do before someone arrives
- Check the thermostat is set to HEAT, not just a lower temperature, and has working batteries
- Check the breaker panel and any furnace-specific switch, often a light-switch-style toggle near the unit
- Replace the filter if it hasn't been changed since before summer
Questions people ask
Why does no-heat always seem to happen on the coldest night?
Because the system has usually sat unused since spring, and whatever was quietly failing - an igniter, a flame sensor, a control board - only shows up the first time it's asked to run. It's also the busiest week of the year for contractors.
Send us the details
We pass them straight to a licensed local HVAC contractor who handles furnace & heating repair. There is no cost to you.
Also see: Furnace & Heating Repair in Columbia, SC
Tell us what your system is doing
Send us the details and we will pass them to a licensed local HVAC contractor.