Dyson Canisters
Dyson DC21
U.S. DC21 Stowaway canister with a motorized brush bar, powered hose/wand path, internal head drive, and retractable cord reel.
DiscontinuedDyson parts/service retiredCanisters
Model identity
Family and variants
- Family
- DC canister
- Type
- Canisters
- Machine codes
- DC21
- Known variants
- DC21 Motorhead, DC21 Stowaway Motorhead
Attributes
How this model is configured
- corded
- bagless
- canister
- electric Motorhead
- powered hose and wand path
- washable filters
- cord reel
- manufacturer parts retired
Schematic
Dyson DC21 schematic
Schematics
Possible causes
Repairs that may fit your DC21
Select what you notice. Repairs that do not fit every selected symptom are removed from this list.
12 possible repairs
Clog RemovalBlockages in hoses, wands, bins, filters, and internal air paths that make the vacuum work harder than it should.ViewFilter ServiceDirty, clogged, missing, or overused filters that reduce suction, cause odor, and make the motor work harder.ViewMotor RepairMotor repairs are moderately common and usually come after simpler airflow, belt, filter, and electrical causes are ruled out.ViewSeal or GasketSeal and gasket issues are moderately common and often hide behind weak suction, dust leaks, or bin problems.ViewPower Switch RepairA worn physical power switch, button, actuator, terminal, or immediate connection that interrupts mains-powered startup.ViewCord or PlugCord and plug repairs are common on corded uprights and canisters because cords are pulled, wrapped, stepped on, and flexed for years.ViewHose RepairHose repairs are common because hoses flex, clog, split, and leak over years of normal use.ViewBin RepairCracked bins, worn latches, blocked inlets, and damaged bin seals that affect airflow or debris release on this Dyson.ViewBrush Roll RepairJammed, damaged, worn, or seized brush bars, rollers, bearings, end caps, and bristle assemblies.ViewCleaner Head RepairCleaner-head motors, wiring, drive assemblies, and housing faults that stop this Dyson's fitted powered head from cleaning correctly.ViewBelt ReplacementBroken, stretched, slipping, or overheated belts that stop the brush roll from cleaning carpet.ViewCord ReelCord reel repair is less common overall, but valuable for canister vacuums where reels are part of the power system.View
Verification
Official model references
U.S. model identity and status were last checked 2026-07-11. A support listing confirms a machine family exists, but does not by itself mean the machine is still sold new.
Replacement options
Replace your Dyson DC21
Dyson has ended manufacturer parts and service for this family, so we offer help choosing a current replacement instead of accepting a repair we cannot support.