Nobody thinks about the coils until the refrigerator starts running like a leaf blower in the middle of the night. By then the fix is a bigger job than it needed to be. The coils are a simple, dull maintenance chore, and the reason it gets skipped is almost never the work itself. It is that nobody owns it.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

Find the coils first

On most refrigerators, the coils are behind a metal grille at the bottom front, behind a kick plate you can pop off, or on the back wall. Some models put them on top or behind a panel. Check the owner's manual for the location, because guessing wrong means pulling the whole unit out for nothing.

Unplug the refrigerator before you start. Yes, it is a hassle to unplug and plug back in, and yes, it is the right move. You are working around a fan and a compressor, and a short wait is cheap.

Gather the tools you actually need

You need a flashlight, a long narrow coil brush, and a vacuum with a crevice attachment. Some families also use a soft cloth to wipe the grille. Skip any metal tool that could bend the thin fins on the coils. A bent fin is a small disaster that takes longer to fix than the dust did.

Do not spray liquids on the coils or the fan. Dry work is the right work here.

The actual job

Vacuum the grille and the floor under it first, so dust does not fall back in while you work. Then brush the coils gently, working from the top down, and vacuum what loosens. If the fan blade is visible, check it for a lint or dust buildup and clear it. Replace the grille or kick plate, plug the unit back in, and listen. The change in noise is usually obvious the same night.

Decide who owns it

How often the coils need cleaning depends on the house. A house with pets, shedding dogs, or a lot of foot traffic in a dusty room will need it more often than a quiet one. The manual usually gives a general frequency, and your own house will tell you whether to go faster. Pick the number that fits your house, not the one from a general rule.

Then write the chore on one sheet of paper: the task, the location of the coils, the tool, the frequency, the name of the person who does it, and the last date it was done. Tape the sheet inside a cabinet door in the kitchen. This list is the thing that keeps the job from living only in your head, which is where good intentions go to die.

On your split week, the coils may be your job. On Mom's week, it may be hers, or it may be a hired helper's errand if your family has agreed on that. Whoever does it, the name on the sheet should match the name on the calendar.

When cleaning is not the answer

If the refrigerator runs all the time, feels warm inside, or has ice building up where it should not, cleaning the coils may not fix it. At that point, call an appliance technician. Do not keep adjusting settings and hoping. A quick call is cheaper than a week of guessing, and the technician can tell you what is actually happening inside the unit.

Clean coils won't solve every problem, but they will stop the leaf-blower sound from being the first warning you hear.