Handle will not lock in upright position or collapses unexpectedly

Safety: Unplug before working on the handle.

• Inspect lock mechanism: Access the handle pivot area and examine the lock pawl and teeth.
• Replace worn parts: If the lock pawl or teeth are rounded or broken, replace the handle lock components.
• Check spring: Ensure the lock spring is intact and providing tension. Replace if stretched or broken.
• Reassemble and test: Confirm the handle locks securely in the upright position before use.