How to Fix a Mouse Scroll Wheel That Stops Working
Pages do not scroll or scroll unexpectedly.
Before you begin
Start with reversible settings checks. Keep your device supported and powered safely. Do not force connectors, open sealed batteries or try high-voltage repair steps.
How to troubleshoot the problem
- 01
Test in more than one application
Determine whether only one app blocks wheel input.
- 02
Inspect operating-system scroll settings
Check scroll speed, natural direction and inactive-window scrolling preferences.
- 03
Clean accessible surfaces safely
Remove visible debris without spraying liquid into the mouse.
- 04
Reconnect or recharge
For wireless mice, replace the battery or re-pair the receiver.
- 05
Compare another mouse
A second mouse can distinguish OS configuration from the original wheel sensor.
Check the result.
Use the wheel tester to confirm both directions produce events; delta values vary by hardware and settings.
Open the related test ↗When to get professional help
If the same problem occurs in multiple compatible applications or devices after safe checks, follow the manufacturer's exact support instructions or ask a qualified repair professional. A browser test cannot prove every hardware component is healthy.