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The genuine OEM Lennox 46X12 water solenoid valve electrically controls the flow of water in your Lennox humidifier or water-supplied accessory. When energized, the solenoid opens to allow water through, and closes tightly when de-energized — precisely regulating water delivery for consistent humidity and preventing unwanted flow or leaks.
A failing 46X12 typically shows up as a valve stuck open causing continuous water flow or overflow, a valve stuck closed that starves the unit of water, weak or no humidification output, or audible buzzing from the coil. Mineral scale buildup, a burned-out solenoid coil, and a worn diaphragm are frequent causes of failure.
Choosing an OEM Lennox valve ensures the correct flow rate, coil voltage, and fitting size your system requires — a mismatched valve can leak, restrict flow, or fail to seal. The authentic 46X12 guarantees proper fit and dependable water control, keeping your Lennox equipment operating cleanly and efficiently.