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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
and Allied Air units
A steady red light typically signals internal control board failure
effectively managing the integrated ignition module
The robust design is engineered specifically for Weil McLain LGB series models
This HVAC collector box specifically fits 80% and 90%+ efficiency models
Lochinvar & A.O. Smith 100073343 Flame Sensor 320788-704 and Allied Air unitsThe Lochinvar and A. O. Smith 100073343 flame sensor is a critical safety component designed for precise flame rectification in high efficiency water heaters and boilers. Engineered to withstand high ambient combustion chamber temperatures, this direct spark ignition flame probe ensures the integrated control board receives a consistent microamp signal, preventing nuisance soft lockouts or ignition failures. This genuine OEM replacement part (formerly