the limit switch may be "stuck open

the 100276822 features a dual auto/manual reset configuration

provided the replacement coil is compatible with the 8040 series valve body and enclosure type

it addresses the common failure point of degraded BUNA N paddles and weakened spring return valve seals

Designed to withstand the thermal cycling inherent in industrial and residential combustion environments

Lennox 21W89 Transformer/Relay 326058-758 the limit switch may beFor veteran technicians looking to maintain system integrity, the Lennox 21W89 Transformer Relay is a critical OEM component engineered for precision HVAC voltage regulation. This heavy duty transformer relay assembly is designed to step down 120V line voltage to a consistent 24VAC output at 40VA, 50 60Hz, ensuring stable low voltage control circuit operation even in demanding environments. By integrating a high performance electromechanical relay,