Why doesn't my Zodiac CNX 30 iQ Vacuum Cleaner climb the pool walls like it used to?
- AAdrian CampbellAug 21, 2025
If your Zodiac Vacuum Cleaner no longer climbs pool walls as it did originally, several factors could be the cause. First, the filter might be full or dirty, so cleaning it is recommended. Alternatively, the filter may be clogged, in which case you should replace it. Microscopic algae in the pool water can also be a factor, even if the water appears clear. In this case, perform shock chlorination and slightly reduce the pH. Ensure you remove the appliance from the water during this treatment.