Lennox 33J88 Pressure Switch 30067439-890 installing this genuine Goodman replacement

installing this genuine Goodman replacement part maintains the calibration benchmarks set by the manufacturer

Wide Series Compatibility: Fits a broad range of Sterling HVAC unit heaters

If your Reznor SCA-6 heater ignites but shuts down after a few seconds

Rated for both 120/240 VAC applications

this coil prevents valve sticking and maintains precise system pressure regulation

Lennox 33J88 Pressure Switch 30067439-890 installing this genuine Goodman replacementThe Lennox 33J88 Pressure Switch is a critical safety component designed for precise draft monitoring in high efficiency gas furnaces. Rated for a set point of 4. 50" WC, this SPST (Single Pole Single Throw) switch provides reliable circuit closure to the control board once the inducer motor establishes the required negative pressure. This part is a direct factory replacement for Lennox model 33J8801, ensuring a drop in fit with existing mounting