How to Clean Refrigerator Condenser Coils — Why It Matters and How to Do It

Refrigerator condenser coils dissipate heat from the refrigeration cycle — they're the coils on the back or bottom of the fridge that get warm. When dust accumulates on the coils, they can't dissipate heat efficiently, forcing the compressor to work harder and run longer. This increases electricity consumption by up to 30% and shortens the compressor's lifespan. Cleaning them annually is straightforward and makes a measurable difference.

Locate the Coils

Coil location varies by refrigerator model:

• Bottom-mounted coils (most common in modern fridges): behind a removable grille at the bottom front of the fridge, accessed by pulling or snapping off the grille
• Rear-mounted coils (older fridges and some models): on the back of the fridge, visible when you pull the fridge away from the wall

Check your owner's manual if you're unsure — it will show the coil location.

Step-by-Step Cleaning

1. Unplug the refrigerator — this is a safety precaution around the fan and motor near the coils
2. For bottom-mounted coils: snap or pull off the front grille at the base of the fridge to expose the coils and fan
3. For rear-mounted coils: pull the fridge away from the wall to access the back
4. Use a vacuum with a crevice attachment to remove loose dust from around and between the coils — work carefully as the coils are fragile aluminum tubing
5. Use a refrigerator coil cleaning brush (a long, flexible cylindrical brush available at hardware stores for a few dollars) to reach between the coil fins and dislodge embedded dust
6. Vacuum again to collect the dislodged dust
7. Wipe the drip pan beneath the coils if accessible (it can accumulate stagnant water and mould)
8. Replace the grille and plug the fridge back in

How Often

• Once a year as part of an annual deep clean
• More frequently if you have pets — pet hair accumulates on coils faster than household dust

Signs the Coils Need Cleaning

• The fridge runs more frequently or continuously
• The fridge doesn't seem as cold as it should be despite the thermostat being set correctly
• The area around the bottom of the fridge is noticeably warmer than usual
• Higher electricity bills without explanation

Refrigerator coil cleaning is not part of a standard home clean but is an annual appliance maintenance task. Book a Toronto deep clean — HST included.