Why Doesn’t My Furnace Have Power?
TechXpert verified by Ken K
Your furnace can falter if its thermostat has no power, if there’s a blown fuse , or a tripped circuit breaker. While a power shortage could be to blame, it’s also possible that the power switch on your furnace was accidentally turned off.
A Simple Switch
Before jumping to conclusions, perform a simple check — is the power switch on? It will look like a light switch. If it’s in the “off” position, simply switch it back on and power should be restored to your unit.
There may also be an emergency shut off switch at the top of the basement steps, and if so, that could have accidentally been turned off along with the lights.
Still No Power?
If you flipped the switch and nothing happened, there may be a bigger issue at play. The next step is to check your furnace’s main and secondary electrical panels: the circuits may have tripped, and if so, you’ll need to turn them back on (which should restore power to your furnace within five minutes).
If you find a tripped circuit was the source of your furnace trouble, you’ll want to look into possible problems with the panel to avoid future issues with your furnace.
Let's Get It Fixed!
Our virtual experts can diagnose your issue (for free!) and resolve simple problems.