DIAGNOSIS Weak suction points to an airflow restriction you haven't found yet. The most common missed culprit is the pre-motor filter or a hidden blockage in the wand.
FIX Perform a full-path blockage check.
- Remove the bin and cyclone assembly. Check the opening where it attaches to the body for compacted dust.
- Wash BOTH filters (the main post-motor filter and the smaller pre-motor filter near the bin release) in cold water. Let dry for 24 hours.
- Detach the wand and look through it. Shine a light to check for an obstruction.
- Detach the cleaner head and run the vacuum with just the hose to see if suction returns. If it does, the blockage or issue is in the head or wand.
IF THAT DIDN'T WORK The motor might be failing, but this is rare. First, ensure you're not accidentally comparing it to Boost mode. Test on Boost mode—if suction is still weak, and all paths are clear and filters are dry, a motor fault is likely.
HEADS UP Using the vacuum on thick, high-pile carpet with the laser head will naturally require more power (Auto mode will ramp up) and can feel like weaker suction compared to hard floors. This is normal operation.