Check the wheels for debris or hair that may be caught in them. Clean the wheels and axles. Inspect the tire pressure. Low tire pressure can make it harder to propel the wheelchair.

Ensure that the brakes are properly engaged. Push down firmly on the brake levers or engage the brake handles to verify they are working. Check for any debris or obstructions around the brake mechanism. Clean and lubricate if necessary.

Inspect the frame and seating components for any loose or damaged parts. Tighten screws and bolts as needed. Check for proper alignment of the wheels. If the wheelchair pulls to one side, realign the wheels.

Verify that all locking mechanisms are disengaged before attempting to fold or unfold the wheelchair. If it's a folding wheelchair, ensure that the frame is not bent or damaged, preventing smooth folding.

If the wheelchair veers to one side, check the alignment of the front casters. Adjust or replace them if necessary. Inspect the rear wheels to ensure they are properly aligned and securely attached.

Check for any obstructions or tangled straps in the footrest or legrest mechanism. Ensure that the footrests or legrests are securely attached to the wheelchair frame.

Lubricate moving parts, such as wheel axles, casters, and joints, to reduce squeaking or unusual noises. Inspect the frame and components for any signs of wear or damage.

If the wheelchair is electric, check the battery charge. Charge the batteries fully and replace them if needed. Inspect the wiring for any loose connections or damage.

If the issue persists or if you are unsure about how to address a specific problem, contact the wheelchair manufacturer or the dealer where you purchased it. They can provide guidance and may have technicians available for repairs.