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Smith 100208407 Blocked Flue Switch is a critical safety component designed for high-efficiency condensing boilers and water heaters
While primarily used in heating systems
The manual reset button must be depressed to restore operation once the liquid level has returned to the safe operating range
reducing nuisance calls and system lockouts caused by weak flame signals
Contractors utilize this furnace control board for troubleshooting HVAC flame sensor issues and resolving gas valve relay failures
White-Rodgers 30A46-105 Flame Sensor 30067439-890 Smith 100208407 Blocked Flue SwitchThe White Rodgers 30A46 105 Flame Sensor is a critical replacement component designed specifically for Cushion Power gas valves and high performance furnace systems. Featuring a 12 inch plugin lead, this sensor ensures precise flame rectification by detecting the presence of a pilot or main burner flame and sending a microamp signal back to the integrated furnace control. This OEM grade White Rodgers sensor is engineered to withstand high temperature
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