Office Chair Not Moving

The inability of an office chair to move may be caused by issues such as stuck casters, malfunctioning height adjustment, inflexible rotation, or failure to return to an upright position after reclining, requiring targeted solutions.

Stuck Casters/Wheels

This often occurs due to long-term entanglement and accumulation of hair, yarn, or dust on the floor, obstructing caster rotation. Solution: Flip the chair over, insert two flat-head screwdrivers from both sides of the caster near the axle, and apply even pressure outward to disengage the retaining spring and remove the caster. Clean hair and fibers from the axle and wheel, then reassemble and test for smooth movement.

Height Adjustment Malfunction

• Accidental Locking of the Locking Mechanism: Check the adjustment handle or knob at the bottom of the chair and try to loosen the locking mechanism.
• Gas Cylinder Failure: If the internal seal is worn, nitrogen leaks, or the cylinder is damaged, it may result in an inability to adjust height or gradual sinking. The gas cylinder cannot be repaired and must be replaced entirely.
• Oil Cylinder Air Leak: If the chair cannot descend, it may be due to an air leak in the height adjuster's oil cylinder. Apply one or two drops of machine oil around the vent button at the top of the cylinder to enhance sealing.
• Other Situations: For a stuck gas cylinder, check for debris or deformation on the cylinder body, lubricate the interface with WD-40 spray, and gently tap around the cylinder to release rust; do not force it downward. If the adjustment lever fails, unscrew the connecting screws between the base and the seat, recalibrate the gear engagement angle of the adjustment lever. For a stuck seat tilt, toggle the recline adjustment knob 3-4 times to release the lock. If height adjustment still fails after these steps, it may be due to nitrogen leakage inside the gas cylinder, requiring replacement.

Inflexible Rotation or Unusual Noises

The turntable track beneath the chair base lacks lubrication, causing dry friction between metal components. Solution: Apply an appropriate amount of silicone-based grease or white lithium grease, then rotate the seat repeatedly to distribute it evenly. Avoid using oily lubricants that easily attract dust.

Failure to Return to Upright Position After Reclining

• Operational Aspect: Check if the control lever beneath the seat has been accidentally pushed in or not fully pulled out. Pull the control lever out completely and hold it in that position; the backrest should automatically rebound to an upright position under the action of the internal spring.
• Foreign Object Obstruction: Check the pivot point at the bottom of the backrest and the junction between the seat and the base for detached clothing, tangled data cables, or other items, and clean them thoroughly.
• Mechanical Failure: If operational and obstruction issues are ruled out and simple maintenance is ineffective, it may be due to hydraulic system failure, lock block/tongue failure, lock post deformation, control tab damage, or spring failure. Consider repairing or replacing the relevant components.