Diagnosis
The motor is weak, likely due to a failing capacitor or worn motor brushes (internal components). It has enough power for low demand but bogs down and triggers the thermal cut-off under higher load.
How to Fix It
First, rule out user error and simple overload.
- Ensure you're not starting on a high speed (like 10). Always start on 1 and gradually increase.
- Make sure the contents are liquid enough. Add more liquid if blending is too thick.
- Use the pulse function for tough items instead of holding a high speed continuously.
If That Didn't Work
The issue is internal. For this model, repairing the motor or capacitor is generally not cost-effective or user-serviceable. The symptom indicates the motor base is failing and likely needs replacement.
Heads Up
Continuously trying to run it on high speed when it's failing can permanently burn out the motor. If basic troubleshooting doesn't restore full function, stop using it to prevent a safety hazard.