“Clean the refrigerator coils” appears on many home-maintenance lists
as if every refrigerator has the same access panel. They don’t. Some
have exposed or reachable condenser coils that collect dust; others are
designed with less owner cleaning. The model number is the better place
to start.
Find the manufacturer’s care instructions and locate the ventilation
openings. If the manual calls for coil cleaning, turn off or unplug the
appliance as directed, protect the floor, and use a suitable brush or
vacuum attachment without bending tubing or disturbing wiring. GE
notes that some models do not require routine condenser cleaning.
Don’t remove panels or pull a built-in refrigerator out without a safe
plan.
Check the door gasket while you’re there. Clean it as directed and
look for tears, gaps, or a door obstructed by food containers. A poor
seal can cause condensation or temperature trouble. If the refrigerator
fails to maintain safe food temperatures, runs abnormally, or has water
on the floor, call an appliance technician rather than assuming dust is
the cause. Move perishable food to safe storage if cooling is
unreliable.
Keep a record of the model and what the manual actually recommends.
For local appliance contacts, use Helpful
Resources. The Homeowner
Tools & Supplies page has general cleaning and leak monitoring
ideas; buy a coil brush only if it suits your unit.