How to Clean Refrigerator Condenser Coils — Step-by-Step Instructions
Unplug the fridge (contents are fine for 30 minutes with doors shut). Don’t stab at the thin condenser fins with hard objects.
Tools
- Coil brush (long flexible bottle-brush, ~$10)
- Vacuum with crevice tool
- Flashlight
Parts
- None — pure maintenance
Watch it done
Two minutes of video can beat a page of text — here's the whole job start to finish.
Video: “The Best Way to Clean Your Refrigerator Coils!” by Clean That Up on YouTube.
Step by step
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1 Find the coils
Newer fridges: behind the front toe-grille or accessed from the lower rear panel. Older fridges: the black grid on the back wall. The flashlight will show you a felt blanket of dust if it’s overdue.
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2 Brush and vacuum
Work the coil brush through the coils and fan area while vacuuming what it dislodges. Get the condenser fan blades too — dusty blades move noticeably less air.
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3 Do the floor and grille
Vacuum the drain pan area and the toe-grille itself; pet hair drifts back fast if you leave a supply nearby.
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4 Restore airflow clearance
When pushing the fridge back, keep a couple of inches of breathing room behind and above it — a fridge sealed into its alcove runs hot no matter how clean the coils are.
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5 Repeat on a schedule
Yearly minimum; every 6 months with shedding pets. Put it on the same calendar entry as your dryer vent.
If the fridge still runs constantly or struggles to hold temperature with clean coils, a real fault (defrost, gasket, charge) is in play — see the runs-constantly cost guide and get a diagnosis. If you'd rather skip it entirely, find a refrigerator repair pro near you →
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