Diagnosis
Sudden loss of suction points to a clog or a full, compressed filter. The vacuum’s smart sensor might not have triggered an alert yet, but airflow is blocked.
How to Fix It
Work through the air path. 1) Empty the dust bin. Don’t just dump it—check inside the bin and the intake port for a packed clump of dust or a large object (like a sock corner) creating a seal. 2) Remove the brush roll and check the tunnel for blockages. 3) Take out both filters (the HEPA and the foam pre-filter). Inspect them. A foam filter that looks clean might still be damp from a previous wash, which kills suction. Ensure it’s 100% dry. 4) Look at the hole where the bin attaches to the vacuum body for debris. Reassemble everything securely.
IF THAT DIDN’T WORK Check the seals. Make sure the dust bin is clicked fully into place and the filter lid is sealed tight. Any gap in the system will leak suction. Also, listen to the motor pitch. If it sounds unusually high and whiny with weak suction, there might be a serious internal clog past the bin.
Heads Up
Avoid vacuuming up large, soft items like pillow feathers or fine fireplace ash. These can bypass the bin and pack directly into the filters or internal airways, causing a deep clog that’s tough to clear.