How often should you clean your refrigerator condenser coils?

Skipping it eventually leads to water damage or an expensive repair.

Staying on schedule matters beyond the repair bill: a consistent maintenance record is one of the factors in a home's Roots Home Health Score, and well-kept homes typically sell faster and closer to asking price.

How to do it

The coils behind or beneath the fridge shed heat from the compressor. When dust blankets them, the compressor runs longer and hotter to stay cold, which drives up the electric bill and shortens its life.

1. Unplug the fridge and locate the coils, usually behind a snap-off kick plate at the bottom front or on the lower back.
2. Vacuum the loose dust, then work a coil brush between the fins to free what the vacuum can't reach.
3. Vacuum again, wipe the floor underneath, and check that the condenser fan (if there is one) spins freely.
4. Snap the kick plate back on and plug the fridge in.

Alternatives & optional extras

• Pets in the house? The coils clog faster; twice a year beats once.
• Built-in and counter-depth models often need the coils accessed from the front kick plate, not the back.

Time: 20 minutes · Typical cost: $5–$15 for a coil brush

What you'll need

• Refrigerator coil cleaning brush

If you skip it

Dust-blanketed coils force the compressor to overwork, which raises cooling bills and is a common reason a fridge fails early.

Other refrigerator maintenance

• Replace refrigerator water filter — every 6 months
• Inspect ice maker water supply line — once a year

Related systems to keep on schedule

• Dishwasher — start with: clean dishwasher filter, every 3 months
• Washing machine — start with: inspect washer supply hoses, every 6 months
• Dryer — start with: clean dryer vent duct, every 6 months
• Range hood — start with: degrease range hood filter, every 3 months