or if you are measuring a flame signal below the manufacturer's recommended microamp threshold

and 277 VAC circuits

and HC41AE200

Enhanced Capacity: Allows the compact Model 496 to deliver higher volume throughput compared to standard residential orifices

As a furnace ignition system component

Amana-Goodman 0257F00140S Heat Exchanger Refrigerant or if you are measuringThe Amana Goodman 0257F00140S Heat Exchanger is a critical OEM replacement component engineered specifically for Amana and Goodman gas furnaces. As a high performance 4 cell furnace heat exchanger, this part is responsible for the primary thermal transfer process, ensuring that heat from combustion gases is efficiently moved to the indoor airflow while maintaining a airtight seal to prevent carbon monoxide leakage. Constructed from heavy duty