Using Your Interlock Safely During an Outage
Last verified: September 2026
The calm, step-by-step routine for running your home on a generator through an interlock — from setting up outside to switching safely back. This is the one to tape by your panel. Want to practice it together? (330) 200-8042.
Using Your Interlock During an Outage, at a Glance
Using an interlock is a short, calm routine you do in the same order every time. You set the generator up outside, well away from the house, start it with nothing connected, then plug the cord into the generator first and the outdoor inlet second. At the panel you turn the main breaker off, slide the interlock plate over, and turn the generator breaker on — then bring your household circuits up one at a time, biggest first. When utility power returns, you reverse it and shut the generator down to cool. There's a printable 29-page version up top.
Common Questions
1 What order do I do everything in?
Set up and start the generator outside, connect the cord generator-end first. Then at the panel: main breaker off, slide the plate, generator breaker on. Bring circuits up one at a time, biggest first. Reverse it all when utility power returns.
2 Which breaker do I turn off first?
The main breaker. Turning it off disconnects your house from the utility lines — that's what lets the interlock plate slide, and what keeps your generator's power from ever reaching the crews working outside.
3 What if the interlock plate won't slide?
Don't force it. The plate is built so it can only move once the main breaker is fully off. If it resists, the main probably isn't all the way off — check it rather than pushing. That resistance is the plate doing its safety job.
4 Can I refuel without shutting the generator off?
No — always turn it off and let it cool first. Fuel on a hot engine can ignite. Your fridge and freezer hold cold during a short pause, so a brief break is fine.
5 Can I run the interlock overnight?
Yes, when the generator is set up safely outdoors, far from the house, with working carbon-monoxide alarms inside and enough fuel. Never move it closer or under cover to run overnight.
6 Do I still run the generator outside?
Always. However you connect it, a generator must run outdoors, well away from the house, because of carbon monoxide. The interlock handles the electrical safety; you handle the exhaust safety.
Would You Rather I Just Help?
When the lights go out, I want you to feel calm and capable, not frazzled. I'll make you a big-print step sheet for your exact panel, practice the whole sequence with you in daylight, and be a phone call away if you're ever unsure during an outage. I don't do the panel wiring myself — that's a licensed electrician's job — but the using part, I'll make easy. $99 flat for a visit.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).