A home generator usually won’t start because of low fuel or oil, a dead battery, a clogged fuel line, a tripped low-oil sensor, dirty spark plugs, or a stuck transfer switch. Many newer standby generators self-test weekly — if that test has failed without you noticing, the unit can be stuck in fault mode and refuse to start when you need it.
Quick checks before you call
- Confirm fuel is supplied (propane tank not empty, natural gas valve open)
- Check battery — look for green/red LED on the control board
- Look for low-oil or service warning lights
- Verify the transfer switch isn’t locked in manual mode
- Check the air filter — clogged filters block startup
If a quick check doesn’t fix it, the unit needs hands-on service before the next storm. Our team installs, inspects, and repairs whole-home generators, and we can also recommend home battery backup as a fuel-free alternative.
