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The backflow sensor monitors for reverse flow in heating systems, helping to prevent contamination of the water supply and ensuring proper circulation. In boilers and hydronic systems, backflow can occur due to pressure imbalances, leading to potential damage or safety hazards. This sensor detects such conditions and signals the control system to take corrective action. When your system displays error codes related to flow or pressure, a faulty backflow sensor may be the cause. Replacing it restores accurate monitoring and helps maintain system efficiency and safety. Designed for compatibility with various heating equipment, this sensor is a key component for boiler maintenance and repair.