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The power board is an essential electronic module that supplies and regulates electrical power to the boiler's control system. As a vital part of burner spare parts and boiler maintenance, this board ensures stable voltage and protects sensitive components from surges. When troubleshooting heating equipment, a faulty power board can cause intermittent operation or complete shutdown. Replacing it with a compatible power board restores reliable function, making it a common repair part for gas burner systems.