or if the fan fails to engage after the burner has been firing for several minutes

Does this part include the cover plate insulation or ignition electrode

or exhaust circuits based on system demand

65" WC threshold

This unit is set for 150 PSI relief

White-Rodgers F825-0261 Prefilter Els PW 17895 or if the fan failsThe White Rodgers F825 0261 Prefilter is a critical primary filtration component engineered for use in Electro Air Thru The Wall (TTW) series electronic air cleaners. Specifically designed for 1400 CFM configurations, including models TTW1400 and 14C13T 410, this aluminum mesh filter serves as the first line of defense in your indoor air quality system. It effectively traps high mass particulates such as large dust particles, hair, and lint before