Proper bleed-type operation requires this fixed restriction to create the signal differential

Rapid flashes often indicate a flame sense failure or a tripped limit switch

the 06EA660137 is the current technical replacement for older Carlyle part numbers like 06EA660068

As a direct replacement for the SY3-120MFT

Lochinvar & A.O. Smith 100110614 Wire 326058-756 Proper bleed-type operation requires thisThe Lochinvar & A. O. Smith 100110614 Wiring Harness is a critical OEM replacement component designed for high recovery commercial water heaters and residential power vented models. Measuring 78 inches in length, this harness facilitates stable communication and power distribution between the control board and various system peripherals, including sensors and blower assemblies. This specific HVAC wiring harness ensures that electrical continuity is