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Direct Fit Legacy: Serves as the official replacement for part number 703023
OEM Precision: Guaranteed fitment for specific Reznor heater models
you restore factory-standard performance and ensure the combustion system operates within designed manifold pressures and safety parameters
Ensure the 10K Ohm sensitivity matches your fluid conductivity and check for proper grounding of the common terminal
It also serves as the official replacement for superseded parts
Armstrong Furnace R37400D086 Control Kit Els PW 29614 Direct Fit Legacy: Serves asThe Armstrong Furnace R37400D086 Control Kit (TL103 2) is a critical OEM furnace replacement part designed to restore reliable HVAC ignition system performance. This genuine Armstrong Air ignition control manages the combustion sequence, ensuring safe and efficient burner operation in compatible residential furnaces. Engineered for precision, the R37400D086 circuit board features advanced diagnostic capabilities to assist in troubleshooting furnace
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