A fall record of exterior faucets and interior controls makes a winter problem easier to avoid and describe.
The short answer
List each exterior faucet, attached hose or device, and any known interior shutoff. Follow the fixture and property-specific procedure supplied by a qualified provider. Do not assume every frost-resistant faucet or indoor valve is installed, pitched, or operating correctly.
What to notice
Remove conditions that hold water
Disconnect accessories where the manufacturer and system call for it. A hose, splitter, timer, or closed attachment can retain water. Look for drips and wall moisture during normal use before the freeze. If a valve will not operate normally, schedule attention rather than forcing it on the coldest day.
Understand the interior side
Ask a qualified provider to identify the serving branch, interior shutoff, drain arrangement, and any heated or unheated sections. Label the verified control. Closing a valve without draining or following the actual design may not provide protection. Avoid turning an unknown valve simply because it is near an exterior wall.
Check again after winter
In spring, observe the interior and exterior areas during the first controlled use. A freeze-damaged section can leak inside while water appears normal outdoors. Stop immediately if water shows in the wall, basement, or ceiling. Keep the seasonal record with the home plumbing map.
One useful question
Is a faucet labeled frost-free guaranteed not to freeze?
No. Installation, drainage, attachments, condition, exposure, and indoor temperature matter. Ask how the particular fixture is configured and follow its instructions. A marketing label does not replace winter preparation or inspection after a severe freeze.