The coils on a refrigerator give off heat as the appliance runs. When they are coated with dust, pet hair, and kitchen grease, the unit has to run longer to do the same job. Keeping them clean is a small task, but it only gets done if someone owns it. This article is about the ongoing job: finding the coils, setting a schedule, keeping the paperwork, and naming who checks.

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Find the coils and confirm the type

Many refrigerators have the coils behind a grille at the bottom front, which you can pull off by hand or with a few screws. Others have them on the back, behind a panel, or in a space beside the compressor. Look at the owner's manual first, because it will show where the coils are and what cleaning the manufacturer recommends. If you cannot find the manual, check the back panel or the inside wall of the fridge for the model number, and look up the manual under that number.

Set the schedule in the manual, not in your memory

The manual will give a cleaning interval. Use that interval as the starting point, then adjust it up if the home has pets, a dusty floor, or a cooking area near the fridge. The point is to write the schedule down and attach it to a task owner. Something like 'check the coils every season' is only useful if the person who should check them can be named.

Clean the coils safely

Unplug the refrigerator before you reach in. Pull the unit out far enough to reach the back or the grille, and be careful of the floor, since the wheels can scratch flooring. Use a long brush attachment on a vacuum to lift loose dust, then use a coil brush or a soft cloth to loosen what is stuck. Avoid soaking the coils or spraying water into the electrical parts. When you are done, push the unit back, plug it in, and check that the fan runs and the door seals hold.

If the coils are caked or you find a bent fin, mark it in the notes and ask a qualified appliance technician to look at it before the next cleaning. Do not use a sharp tool to straighten fins.

Keep the paper in one place

Write down three things in one folder or one shared note: the model and serial number, the date the appliance was bought or installed, and the warranty terms, including how long the warranty runs and what it requires. Some warranties ask for regular upkeep to remain in force. Keeping the receipt, the manual, and the warranty card together makes a future claim far simpler, and it gives the group one place to look instead of three.

Name who checks it

Choose one person as the coil owner. That person checks the coils on the schedule, notes the date, and tells the group when the cleaning is done. A second person should know the job and be able to step in when the first is traveling or sick. Write both names next to the schedule in the shared note. If the coil owner is a relative who lives far away, arrange a visit or a hired helper for the cleaning, and decide who pays for the helper before the bill arrives.

When to call for service

Call a technician if the fridge runs constantly, the inside feels warm, the motor makes a new noise, or water collects under the unit in a way that cleaning does not explain. Do not wait for a failure to start the conversation about who pays. Decide that ahead of time, in writing, when everyone is calm.

For more on keeping track of shared home costs and who approved each job, the Local help page lists places to ask for basic support in the St. Louis area.