this sensor is frequently found in AirEase

Excessive soot buildup can bridge the spark gap

By preventing rapid restarts during power interruptions or thermostat cycling

Common Questions How do I troubleshoot an HK42FZ020 board with no heat

Can I use VAL3204 to replace this unit

Lochinvar & A.O. Smith 100187927 Burner Assembly 319847-401 this sensor is frequently foundWhen you're servicing a failing GS(N)05040 natural gas water heater, the Lochinvar & A. O. Smith 100187927 Burner is the exact 20 inch final burner assembly required for a drop in replacement. This NAT 20" BURNER ASSY comes pre configured with a #34 orifice, ensuring the correct BTU output and manifold pressure for high efficiency operation in Lochinvar Series 400 units. Veteran techs know that burner degradation or cracked heads often lead to