Symptoms
- Hex wrench is fully inserted but won't rotate the flywheel at all
- Significant resistance or it feels completely locked
- No visible object from a flashlight check
- Broom handle method also fails to move it
Likely causes
- CommonObject wedged very tightly between the impeller and grind ringSome objects lodge at an angle that resists rotation in either direction.
- PossibleMultiple objects or debris compounding the jamMore than one piece of debris can lock the mechanism more firmly than a single item.
- PossibleMechanical failure unrelated to a jam, such as a seized bearingIf nothing is visibly stuck, the flywheel itself may have seized from corrosion or bearing failure.
What to do
- Confirm power is off and unplugged before continuing to work on it.
- Try turning the wrench firmly in both directions rather than just one, since some jams only release one way.
- Try the alternate method: insert a broom handle into the top opening against an impeller vane and apply steady pressure to rock it.
- Use a flashlight and, if possible, a small mirror to look at multiple angles inside the chamber for anything missed.
- If you can see an object but can't reach it safely, use long needle-nose pliers rather than forcing the wrench harder.
- If nothing is visible and the flywheel truly won't budge at all, treat it as a likely mechanical seizure rather than a simple jam.
Tools and parts
- 1/4-inch hex wrench
- Broom handle
- Flashlight
- Long needle-nose pliers
When to call a pro
If the flywheel remains completely locked after trying both unjamming methods, a plumber or appliance tech can safely disassemble the unit or advise replacement.
Safety
Use caution
Don't force the wrench with excessive strength, and never substitute your hand for a tool inside the chamber.