Waterway Executive 3.0 SPL [8.4A] [2S] Pump (3421221 1A) aquastar Replacing the control pack is Replacing the control pack is often the cleanest way to reset the entire experience when the problem goes deeper than a single accessory or sensor A larger replacement like this is especially useful when the damage is too central for smaller repair parts to address fully The Waterway 3421221 1A Executive pump is designed for compatible applications and features a 3 A pump like this is useful because it restores the full pump assembly in a format that preserves both the Executive design family and the flexibility of two speed operation