Visual check monthly
Do a quick visual check every month: right place, pin and seal intact, gauge in the green, no damage. Rechargeable extinguishers get a professional inspection once a year. Disposable ones must be replaced 12 years from their manufacture date.
A fire is survivable in its first minute and often not much after that, which is the whole case for keeping an extinguisher that actually works. The failure modes are quiet: a slow pressure leak, a bit of corrosion, a unit that got moved to the garage and forgotten. None of that shows up unless you look.
The monthly check takes under a minute and is entirely DIY. The once-a-year professional service and the replacement dates are the part that needs a note somewhere you will see it.
How to do it
- Confirm the extinguisher is in its designated spot and not blocked or hidden.
- Check that the tamper seal is intact and the pull pin is in place.
- Read the pressure gauge and confirm the needle sits in the green, operable range.
- Lift the unit to feel that it is still full, or weigh it against the full weight on the label.
- Look over the cylinder, hose, and nozzle for dents, corrosion, or clogging.
- Write the month and your initials on the tag so you have a record.
- Once a year, have a certified technician do the professional inspection and attach a dated service tag.
- Replace a disposable extinguisher at 12 years from its manufacture date, and follow the label's service life on rechargeable units.
Common mistakes
- Skipping the monthly look because it seems fine. Slow pressure loss and corrosion do not show at a glance.
- Keeping a disposable extinguisher past 12 years. It has to come out of service regardless of how it looks.
- Trusting an old tag. It is the current year's service that counts, so check the date.
This is exactly the kind of thing that is easy to know and easy to forget. Adulting can put it on a cadence so it surfaces when it is next due, instead of when something goes wrong. Free to start.
Sources
Questions people ask
- What is the monthly check actually looking for?
- Mainly that the extinguisher is present and accessible, the pin and seal are intact, and the gauge shows pressure. An extinguisher that has quietly lost pressure will fail exactly when you reach for it.
- Do extinguishers expire?
- Effectively yes. Disposable units are replaced at 12 years. Rechargeable units follow a service schedule that includes periodic internal exams and pressure testing, so follow the label and the annual professional check.