01
Know how old your furnace is
What to check
Find the data plate. Note the install year, model, and last tune-up.
Why it matters
You will know what you have before it starts acting differently.
Do you know how old your furnace is?
Small warning signs can become bigger problems. Start with five simple checks.
See the Top 5Five things worth knowing
5- 1Know how old your furnace is
- 2Find your main water shutoff
- 3Look up—from the ground
- 4Check your filter and vents
- 5Test alarms and learn your panel
Check these five things
- 02
Find your main water shutoff
What to check
Locate the valve and keep the path clear. If corroded, do not force it.
Why it matters
A faster shutoff can mean less water damage.
- 03
Look up—from the ground
What to check
Look for missing shingles, sagging gutters, peeling trim, or dark stains.
Why it matters
Small exterior clues can reveal leaks early.
- 04
Check your filter and vents
What to check
Note the filter size and date. Clear supply and return vents.
Why it matters
Clear airflow helps the system work properly.
- 05
Test alarms and learn your panel
What to check
Test smoke and carbon monoxide alarms. Check your panel labels.
Why it matters
You need working alarms and the right breaker quickly.
Stay on the ground. Do not force valves or open electrical equipment. Call a qualified professional if anything looks unsafe.