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Automatic Reset Functionality: Transitions between 165°F (Open) and 125°F (Closed) states without manual intervention
Durable Construction: High-grade black plastic resists the high-temperature environment found within furnace cabinets
technicians rely on the S1-9951-0981 technical specs to maintain proper manifold pressure and BTU input ratings
phase loss
or improper manifold gas pressure causing the flame to "roll out" of the burner area
Marley Engineered Products 4520-2030-000 Thermal Fuse Automatic Reset Functionality: Transitions betweenThe Marley Engineered Products 4520 2030 000 Thermal Fuse is an essential OEM replacement part designed for high limit temperature protection in QMark and Marley electric heaters. This Therm O Disc MicroTemp thermal cut off is engineered to interrupt the electrical circuit if internal temperatures exceed the critical 144C (291F) threshold, preventing equipment damage and ensuring system safety. As a genuine Marley heater repair part, it maintains the
