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Ensure the flame rollout sensor is correctly positioned according to the manufacturer's layout
This gasket is compatible with several Williams furnace series
and 3155 units
allowing for precise fitment on different motor shaft sizes (hub sold separately)
replacing the assembly is a common solution
Lennox 27H87 Limit Switch Ensure the flame rollout sensorThe Lennox 27H87 Limit Switch is a critical OEM safety component engineered for precise thermal management in high performance heating systems. This 120 160F auto limit switch is specifically designed to monitor furnace plenum temperatures, providing a fail safe against overheating by interrupting the burner circuit if thresholds exceed the factory calibrated 160F limit. As a veteran grade HVAC replacement part, the 27H87 ensures seamless integration
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