Honeywell Coil and shutter assy 190971B/U

The Honeywell 190971B/U is a coil and shutter assembly designed for use with Honeywell C70xx series burner controls, including models C7012E, C7012F, C7061A, and C7061F. It operates at 120 V AC and functions as an electromechanical actuator, converting electrical signals from the control into mechanical movement of a shutter to regulate combustion air or gas flow. This component is categorized as a sensor component and is compatible with the C70xx series burner controls.

When selecting a replacement coil and shutter assembly of this type, verify the operating voltage, mechanical stroke length, and mounting dimensions. The electrical connector type and cable length must match the existing wiring. Physical fit with the actuator housing and linkage must be confirmed; any binding or misalignment can cause erratic control or lockout. During installation, ensure the shutter moves freely and the sealing surface is clean and undamaged.

Typical failure modes include coil winding burnout due to sustained overvoltage or moisture ingress, a stuck shutter from debris or corrosion, and wear on pivot points. When such failures occur, the burner control may exhibit erratic operation or lockout. Check the coil for continuity and inspect the shutter for free movement and cleanliness.