you provide secondary filtration that acts as a diagnostic tool

the internal ECM controller is likely defective

Cadmium-Free Safety: Formulated for operator safety and environmental compliance without sacrificing the strength of the bond

Can I bypass the T111640005 for testing purposes

filter monitoring

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