Zodiac Polaris VRX iQ+ Sensor Block Assy helps restore a specific function within compatible VRX iQ+ equipment without turning a targeted repair into a full assembly replacement. It supports Polaris VRX iQ and VRX iQ+ robotic cleaner service by replacing a specific wear, support, sensor, storage, or intake component. Use it when the cleaner has worn rollers, damaged support pieces, a cracked caddy component, intake issues, or sensor-related behavior after inspection. Confirm the VRX iQ or VRX iQ+ model and part number before ordering. Supports robotic cleaner service Helps avoid full cleaner replacement Useful for VRX iQ repairs Match model generation carefully Inspect rollers and intake areas For the best repair outcome, confirm part R0863300, model family, connection style, and surrounding wear points before final reassembly.