You open Dad’s refrigerator and pause. The milk does not feel very cold. There is water under the vegetable drawer. A package of sliced turkey has been moved to the back, where Dad says it keeps better.

He sees you looking.

“It’s fine,” he says, with the confidence of a man who has owned the same appliance since everyone had smaller televisions.

Maybe it is fine. But refrigerators often give small warnings before they stop doing their job. The trouble is easy to miss when Dad is eating less, opening the door less, or keeping only a few things inside. You are not trying to catch him doing something wrong. You are trying to find out whether the food he reaches for is staying safely cold.

Start with what changed

Ask Dad whether anything seems different. Does the refrigerator run longer than it used to? Has it become noisy, strangely quiet, or warm along one side? Is ice cream softer? Does milk spoil sooner? Has he noticed water on a shelf or the floor?

Then look for the workarounds he may already have invented. Food crowded against the back wall, drinks moved into the freezer, a towel tucked under the door, or instructions not to use one particular shelf all tell you something. Dad may not call these warning signs. He may call them “how this refrigerator works.”

Notice the food he has stopped buying, too. If he no longer keeps milk, meat, leftovers, or anything else that spoils easily, ask why. The answer may be appetite. It may also be that he no longer trusts the refrigerator, even if he has not said so plainly.

Check the temperature instead of guessing with your hand

Put a simple refrigerator thermometer near the middle of the main compartment, away from the cooling vent and the door. Follow its instructions and check it after the door has stayed closed for a while. Compare the reading with the safe refrigerator range given by the thermometer maker or a trusted food-safety source.

Check more than once. A refrigerator can seem cold after the motor runs and become too warm between cycles. If the reading moves outside the safe range, write down what you saw and when you checked. That gives Dad and a repair person something more useful than “the milk felt funny.”

Do not adjust every control at once. First photograph the current setting. If Dad agrees to a change, make one small adjustment and check the thermometer again after the appliance has had time to respond.

Look at the door before blaming the whole machine

Close the refrigerator door slowly and watch whether it pulls itself shut. Check for a bottle, drawer, or food package keeping it slightly open. Wipe crumbs and sticky spots from the rubber seal. Look for gaps, tears, or a corner that has folded over.

Try the paper test in several places: close the door on a strip of paper and gently pull. If the paper slides out without much resistance in one area, the seal may not be holding evenly.

Also check whether the refrigerator sits level enough for the door to close properly. You do not need to start moving a heavy appliance tonight. You only need to notice whether the door swings open again when no one is holding it.

Check airflow and the things around it

A refrigerator needs room for cold air to move inside. Make sure food is not packed tightly against the interior vents. Dad does not need an artfully arranged refrigerator. He just needs air paths that are not blocked by a heroic stack of leftovers.

Outside the refrigerator, look for dust where the appliance instructions say air enters or leaves. Do not remove panels or reach near moving or electrical parts. If cleaning requires pulling the refrigerator out, unplugging it, or using tools, leave that for someone who can do it safely.

Notice the room as well. A refrigerator beside a heat source or pressed into a space with poor airflow may struggle. That does not mean the kitchen must be rebuilt. It means the location is part of what you describe when asking for service.

Decide what food should not stay

If the refrigerator has been too warm, do not ask Dad to settle the question by smelling or tasting the food. Some unsafe food looks and smells ordinary.

Set aside perishable items that may not have stayed cold, including meat, fish, dairy foods, cooked leftovers, and opened packages that require refrigeration. Check package directions and trusted food-safety guidance. When you cannot tell how warm the food became or how long it stayed that way, choose the cautious answer.

Let Dad take part in the decisions. Ask before clearing shelves. He may know when something was opened or whether it had just been placed inside. He may also care deeply about a casserole because Mom made it. Treat that as grief, not clutter. You can respect what it means without pretending uncertain food is safe to eat.

Make the next meal easy while you sort it out

A refrigerator problem can quietly become an eating problem. Dad may decide that avoiding the kitchen is simpler than telling you the appliance is failing.

Before you leave, make sure he has food for the next meal that does not depend on a questionable refrigerator. Choose something he already likes and can prepare without wrestling with instructions. If the refrigerator needs repair, agree on where cold food will go and who will handle the call.

Do not fill a temporary cooler or borrowed refrigerator with aspirational groceries. Start with what Dad will actually eat: a familiar breakfast, a simple lunch, and one supper he can recognize without reading three labels.

What to do tonight

Put a refrigerator thermometer in the middle of the main compartment. Check that the door closes completely. Move food away from blocked vents. Look for water, a damaged seal, unusual noise, or food that is no longer properly cold.

Set aside questionable perishables without tasting them. Give Dad a safe, easy next meal. Then write one short note: the thermometer reading, what seemed different, and who will check again or arrange service.

If there is a burning smell, smoke, sparking, a hot plug, or water near an electrical connection, keep Dad away from the appliance and get appropriate help immediately. Do not pull or unplug it if doing so would put either of you at risk.

When to ask the doctor

Call Dad’s doctor if he develops vomiting, diarrhea, fever, strong stomach pain, unusual weakness, confusion, dizziness, or trouble keeping fluids down after eating food that may not have stayed cold. Ask sooner if he seems much less alert than usual, is difficult to wake, faints, has blood in vomit or stool, or shows signs that he needs urgent help.

Also mention it if spoiled food is only part of the concern. If Dad is regularly forgetting whether food is old, eating food he once would have rejected, or no longer managing ordinary meals, tell the doctor exactly what you have noticed. Bring examples rather than a conclusion.

Add this line to the good-week card

Check the refrigerator thermometer and make sure Dad has one cold meal he actually wants to eat.