i washed the filters but now my shark has no suction at all. what did i do wrong?

Diagnosis

This is a classic case of airflow restriction caused by moisture-induced surface tension. In the Shark Cordless Pro IZ562H, the filtration system relies on a high-density foam and felt combination. When these materials are wet, the water fills the microscopic pores of the filter media, creating a physical seal that air cannot penetrate. Because the motor is designed to pull air through these specific channels to cool itself, a wet filter acts like a solid wall, resulting in a total loss of suction. Furthermore, the IZ562H is equipped with an electronic sensor system that monitors airflow. If the motor detects a significant drop in airflow (vacuum pressure), it may trigger a safety "cut-off" or a low-power mode to prevent the motor from overheating or sucking water directly into the electrical components. You can confirm this by removing the filters entirely and turning the vacuum on for two seconds; if suction returns immediately, the filters are the sole culprit. If the vacuum still has no suction without filters, you likely have a secondary clog in the wand or the brush roll head.

How to Fix It

To restore full suction, you must ensure the filters are 100% dehydrated. Even a 5% moisture level in the center of the foam will block airflow. Follow these steps:

1. Power off the unit and remove the battery pack to ensure no accidental activation occurs during the process.
2. Detach the dust cup and remove both the foam and felt filter assembly and the secondary fine dust filter located at the base of the bin.
3. Gently squeeze the foam filters to remove any trapped pockets of water. Do not wring or twist them, as this will tear the foam cells and permanently reduce filtration efficiency.
4. Place the filters on a clean, dry towel in a room with a ceiling fan or an open window. Position them so that air can circulate around all sides of the filter.
5. Wait a minimum of 24 to 48 hours. Do not rely on a "touch test" of the exterior; the core of the foam often remains damp long after the surface feels dry.
6. Once completely dry, reinstall the filters, ensuring they are seated firmly and flush against the housing to prevent air leaks.
7. Reinsert the battery and test the suction on the "Clean" or "Boost" setting.

If That Didn't Work

• Inspect the Brush Roll Header: Check the bottom of the nozzle for a "hair wrap" or a large debris clog (like a clump of carpet fibers or a coin) that may have shifted while you were cleaning the filters. Use a coin or screwdriver to remove the brush roll and clear any obstructions.
• Check the Wand Connection: Remove the extension wand and look through the tube toward a light source. If you see a blockage, use a long, flexible wire or a broom handle to push the debris through toward the nozzle.
• Deep Clean the Dust Cup Seals: Sometimes, while washing filters, dust and grime accumulate around the rubber gaskets of the dust cup. Wipe these seals with a damp cloth and dry them; if the seal is compromised, the vacuum will lose suction regardless of filter condition.
• Replace the Filter Set: If the filters were washed with a harsh detergent or soap, the chemical residue can cause the foam to collapse or "glaze," permanently blocking airflow. Purchase a replacement filter kit specifically for the IZ562H model.

Heads Up

• Never use a clothes dryer, microwave, or hair dryer to speed up the drying process. High heat will shrink the foam filters, creating gaps in the seal that allow dust to bypass the filter and destroy the motor.
• Avoid using soap or dish detergent when washing filters. Use only lukewarm water. Soap leaves a film on the foam that attracts more dust and clogs the pores faster.
• Wash your filters every 30 days, but only if you are using the vacuum daily. Over-washing can wear down the structural integrity of the felt layer.
• Always check the "Fine Dust" filter for greyish buildup; if it looks charcoal-colored even after washing, it is saturated and needs to be replaced.