Lochinvar & A.O. Smith 100278106 Vent Damper 323613-751 the issue likely resides in

the issue likely resides in the control board or the wiring harness

technicians should verify if the existing grommets require replacement based on wear

How do I confirm if this logic board kit is compatible with my specific YCIV model

preventing the furnace from firing if proper venting is not detected

it ensures exact mounting and electrical compatibility

Lochinvar & A.O. Smith 100278106 Vent Damper 323613-751 the issue likely resides inThe Lochinvar & A. O. Smith 100278106 Vent Damper is a critical OEM replacement component designed specifically for 7 inch flue applications. Engineered for compatibility with RB RW225 270 boiler and water heater models, this automatic vent damper enhances system efficiency by preventing standby heat loss through the stack. When the burner cycle completes, the motorized actuator closes the baffle, trapping residual heat within the heat exchanger to