When diagnosing a pilot light that won't stay lit

What should I do if the pins are misaligned during installation

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The Weil McLain 560-528-989 Burner Orifice is a precision-engineered OEM replacement part designed specifically for natural gas boiler manifold assemblies

York S1-025-41321-000 Limit Switch When diagnosing a pilot lightDesigned for professional field installation, the York S1 025 41321 000 Limit Switch is a critical safety component for maintaining thermal integrity in high efficiency furnaces and packaged HVAC units. This genuine OEM replacement part features a precision calibrated thermal disc engineered to open the control circuit at 150F if internal temperatures rise above safe operating parameters, preventing equipment damage and hazardous conditions. Once the