Product Description 1. FDXLFWP1930 Field Wiring Panel Replacement Kit: For Hayward Universal H-Series Low Nox Pool Heaters (H150FD, H200FD, H250FD, H300FD, H350FD, H400FD, H500FD) 2. Efficient & Safe Operation: Fixes common issues like heater not powering on, incorrect voltage display, or control board failure. Ensures correct electrical connections for reliable performance, safe operation, and smooth, even pool water heating. .
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