2 Pack R20017402 52M73 Rollout Switch L350F Fit for Lennox/Ducane/Armstrong， Furnace Replacement Limit Switch

Fit for Lennox/ Ducane/ Armstrong stoves. Constructed from high-grade bakelite and stainless steel, it offers superior insulation, exceptional resistance to high temperatures, and remarkable corrosion protection, guaranteeing reliable and durable performance over time. The device automatically shuts off power at 177°C (350°F) to guard against overheating. A manual reset is necessary once it has fully cooled—resetting too soon may damage internal components. Automatically disconnects power when overheating occurs, significantly reducing fire hazards, while refined heating and cooling cycles promote consistent and reliable performance. Note: 1. Disconnect the furnace power supply before starting any work. 2. Locate the limit switch that needs to be replaced. 3. Before disassembling, note the location and connection method of the wires to ensure correct reinstallation. 4. Secure the new switch in place and reconnect the wires according to the original configuration. 5. Test operation after installation to confirm normal function.

• Applicable models: Fit for Lennox/ Ducane/ Armstrong stoves
• Replacement part codes: R20017402, 52M73. Two R20017402 stove limit switches are included in the product package
• High quality: Crafted from premium bakelite and stainless steel, featuring excellent insulation, high-temperature resistance, and outstanding corrosion resistance, ensuring long-term stable operation
• Manual reset: The device automatically cuts off power at 177°C (350°F) to prevent overheating. Manual reset is required after complete cooling; do not reset prematurely to avoid damaging components
• Safe, reliable, and efficient operation: Automatically cuts off power in case of overheating, effectively preventing fire risks. Optimized heating and cooling cycles ensure stable operation