verify 115V at the power plug and 24V communication signals from the control board to ensure the issue is not with the furnace control module or wiring harness before replacement

and red signals a system lockout

which are critical for preventing internal leakage and sluggish operation

As the direct replacement for 174031LF-043

Is this a suitable replacement for a 1/4 HP furnace blower

Marvair 92901 Ignitor 320788-703 verify 115V at the powerThe Marvair 92901 Ignitor is a critical 120V OEM replacement component designed for high performance ignition in Marvair HVAC units, specifically the Marvair DL3 Dynaline series produced from 2017 to the present. As a veteran grade 120V gas furnace ignitor, this part is engineered to generate a consistent high energy spark, ensuring dependable combustion for industrial and commercial gas fired furnaces, boilers, and water heaters. its robust