the clean station makes a really loud high-pitched screeching noise when it empties the robot.

Diagnosis

The high-pitched screeching or whistling sound during the auto-empty cycle is almost always a result of "air cavitation" or a partial vacuum leak. This occurs when the Clean Station's powerful suction motor is attempting to pull debris through the robot's internal conduits, but the airflow is restricted by a dense clump of debris, a piece of cardboard, or a misplaced dustbag seal. When air is forced through a tiny gap at high velocity, it creates a sonic vibration—similar to a tea kettle—which manifests as that piercing screech. You can confirm this by checking the "Empty" indicator on the Bespoke Jet Bot Combo's display. If the robot reports the bin is still full despite the station running its cycle, there is a physical blockage. Additionally, inspect the dustbag; if the bag is not seated perfectly flush against the cardboard collar, air escapes around the edges rather than flowing through the bag, creating a high-frequency whistle. If the sound persists even with a brand-new bag and a clear path, the internal impeller bearing in the station's motor may have failed, though this is rare compared to simple blockages.

How to Fix It

Follow these precise steps to clear the airflow path and seal the vacuum system:

1. Power down the Clean Station completely by unplugging it from the wall outlet to prevent the motor from triggering while your fingers are near the intake.
2. Open the front cover of the Clean Station and remove the dustbag. Carefully examine the cardboard mounting flange; if it is bent or torn, the seal will fail, causing the screeching sound.
3. Using a high-lumen flashlight, look directly into the suction throat (the opening where the robot docks). Look for "bridge" blockages—large items like a clump of pet hair mixed with a piece of plastic or a thick coin—that may be partially blocking the aperture.
4. Use a pair of long-nose pliers or a flexible vacuum retrieval tool to reach into the station's intake port and pull out any lodged debris. Do not use a screwdriver or metal rod, as you may puncture the internal plastic lining.
5. Inspect the robot vacuum's own dustbin exit port. Ensure the rubber gasket on the robot's bin is clean and not pinched, as a poor seal here forces the station motor to work harder, increasing the pitch of the noise.
6. Install a fresh, genuine Samsung Bespoke dustbag. Ensure the bag is pushed firmly back until it clicks into the holder and the plastic slide-lock is fully engaged.
7. Plug the unit back in and trigger a manual empty cycle via the SmartThings app to verify the sound is gone.

If That Didn't Work

• Check the Station Filter: Locate the motor filter at the top or rear of the Clean Station. If this filter is clogged with fine dust, the motor cannot "breathe," creating a high-pressure vacuum that screams. Remove the filter, tap it firmly against a hard surface to release dust, or replace it if it is grey/black.
• Inspect the Robot's Internal Conduit: Sometimes the blockage isn't in the station, but in the robot's internal "throat" leading to the bin. Remove the dustbin from the robot and use a flashlight to look up into the vacuum channel. Use a flexible pipe cleaner or a thin zip-tie to clear any compacted debris.
• Verify the Docking Alignment: If the robot is not docking perfectly flush against the station's intake, air leaks from the sides during the emptying process. Ensure there are no rugs or thick mats pushing the station slightly forward or tilting it, which prevents a vacuum-tight seal.
• Test with a Different Power Circuit: In rare cases, voltage drops on a shared circuit can cause the motor to run at an irregular frequency. Plug the Clean Station directly into a wall outlet rather than a surge protector or extension cord to ensure the motor receives full power.

Heads Up

• Avoid using generic third-party dustbags. Non-OEM bags often have slightly different dimensions or thinner materials that collapse under pressure, causing the air-leak screeching.
• If you have a high-pile carpet, move the Clean Station to a hard-floor surface. This ensures the robot docks at the exact millimetric angle required for a silent, airtight seal.
• Clean the robot's sensors and the station's charging contacts every 30 days with a dry microfiber cloth to ensure the robot docks precisely every time.
• If the screeching sounds more like "grinding" than "whistling," this indicates a mechanical bearing failure in the motor; stop use immediately and contact support for a motor assembly replacement.