Aaon P91330 Limit Els PW 17895 a "stuck open" switch often

a "stuck open" switch often causes the blower to run continuously without burner ignition

This automatic reset limit switch is often cross-referenced with older part numbers

85" WC fixed set point

Most failures result from carbon buildup on the tip

Ensure the setting matches the furnace manufacturer's original safety limit specifications to prevent overheating or nuisance tripping

Aaon P91330 Limit Els PW 17895 a "stuck open" switch oftenThe Aaon P91330 is a precision engineered fixed temperature limit switch designed for high limit protection in Aaon rooftop units and air handling systems. Operating with a 210F trip point and a 40F manual reset differential, this safety control prevents heat exchanger damage and unsafe operating conditions by opening the control circuit upon sensing an over temperature event. As a direct OEM replacement part, it ensures compatibility with existing