you provide secondary filtration that acts as a diagnostic tool

8" WC and a high-fire manifold pressure of 10

filter monitoring

Ensuring this sensor is calibrated and free of resistance drift is essential for preventing short-cycle issues and ensuring the system maintains peak hydronic heating efficiency

the internal ECM controller is likely defective

Heil Quaker ICP 1171287 Heat Exchanger 320788-704 you provide secondary filtration thatThe Heil Quaker ICP 1171287 Heat Exchanger is an essential OEM replacement component engineered for high efficiency gas furnace repair and maintenance. As a primary heat exchanger, this unit is responsible for the critical thermal transfer process, ensuring combustion gases are safely vented while maximizing heat output to the plenum. Constructed from aluminized steel to resist thermal fatigue and corrosion, the ICP 1171287 is designed to match the