It looks like you want to related to a code or item identifier "3mp31702" with a focus on a "fix" (likely a bug fix or repair action).
: If the motor runs when connected directly to power but not through the control board, and the thermal switch shows "open" (no continuity) even when cold, the component has likely failed and needs replacement. 2. Common Fixes for "3MP31702" Related Issues
: Unplug the vacuum and let it sit for at least 30–60 minutes .
If clearing the cache didn't work, your antivirus might be flagging a legitimate connection as a threat, triggering the 3MP31702 block.
Some older protectors can be manually reset by cooling them in the freezer, as the built-in bimetal can close again. because it is a non-resettable component. Freezing did not help affected users.