Dyson DC37-00019A – What This Part Is and How to Replace It

Understanding the Problem

What DC37-00019A is: DC37-00019A is the cleaner-head / motorized brushbar assembly used on Dyson DC37 upright vacuums (commonly listed as the cleaner head or brush bar housing/assembly). This assembly contains the rotating brushbar, end-bearing supports, and the small motor/drive components that make the brush spin. When this assembly fails you’ll lose agitation on carpets, hear grinding or humming noises, or get a burning smell. Step-by-step diagnostics (numbered): 1. Confirm the symptom: does the brushbar not spin while the vacuum motor still runs? Do you hear a hum, grinding, or a burning smell from the cleaner head? Does carpet cleaning performance drop dramatically? These point to the cleaner head / brushbar assembly. 2. Visual inspection: unplug the vacuum and remove any visible hair, string, or debris trapped around the brushbar and end caps. Often a jam will prevent rotation. 3. Manually rotate the brushbar: with the machine OFF and unplugged, tip the cleaner back, remove the soleplate or access cover (see replacement steps) and try to spin the brushbar by hand. If it’s stiff or seized, bearings or the brushbar shaft is likely damaged or jammed. 4. Listen for abnormal noises: with the vacuum running briefly (after reconnecting and holding at handle; do this only if safe and brief), listen for grinding or whining from the cleaner head. A loud hum with no rotation usually indicates a failed brush motor or stripped gears. 5. Electrical check (optional): if you have a multimeter and are comfortable, disconnect the cleaner-head wiring and check for voltage at the head connector when the brush is supposed to run. If voltage is present but the brush doesn’t spin, the head motor is faulty. Practical how-to-fix (replacement steps, numbered): Tools you’ll need: Philips and/or Torx screwdrivers (common sizes: T10/T15/T20), long-nose pliers or scissors (to remove hair), small flat screwdriver, replacement part DC37-00019A (cleaner head/brushbar assembly), and optionally a multimeter. 1. Safety first: unplug the vacuum from mains power. 2. Access the cleaner head: tip the vacuum back so the base is accessible. Remove the soleplate/brushbar cover screws (note screw types/locations) and lift off the cover. Keep screws organized. 3. Remove the brushbar: slide out or lift the brushbar (some caps twist off). Cut and remove hair and debris wrapped around the brushbar shaft and bearings. 4. Inspect bearings and end caps: look for melted plastic, cracked bearings, seized shafts, or missing gear teeth. If any of these are present, the whole cleaner-head assembly replacement is recommended. 5. Disconnect electrical connector: if the brushbar is motorized, there will be a wiring plug between the cleaner head and the main body — unplug it by depressing the tab and pulling apart. 6. Remove cleaner head assembly: remove the mounting screws or release clips holding the cleaner head to the body and lift it free. 7. Install DC37-00019A: position the replacement cleaner head assembly, reconnect the electrical connector, secure mounting screws or clips, reinsert the brushbar and replace the soleplate/cover screws. 8. Test operation: plug the vacuum in, turn it on briefly and verify the brushbar spins, listen for normal sound, and confirm improved carpet agitation. 9. Final check: vacuum a small area of carpet to ensure it cleans normally and that no unusual vibration or noise exists. Safety note: Always unplug before doing physical work on the vacuum. If you’re not comfortable with electrical checks, avoid them and proceed straight to replacement. Replace the entire head assembly if gears or motor are damaged rather than attempting partial repairs unless you have experience with Dyson gearboxes.

Common Symptoms

Brushbar not spinning, reduced carpet pickup, burning smell from the cleaner head, loud grinding or whining noises, or the vacuum head vibrating excessively.

Common Causes

• Hair, string, or debris wrapping around the brushbar and seizing the shaft
• Worn or seized brushbar bearings/end caps
• Failed motor or stripped gears inside the cleaner-head assembly
• Damaged wiring or connector between the main body and cleaner head

Popular Parts That Fix This Problem

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Frequently Asked Questions