This is usually caused by low voltage at the 24V coil or debris on the contact face

This Uni-Kit is shipped with a natural gas orifice installed and includes a separate orifice specifically calibrated for LP gas conversion

including a calibrated manometer for checking manifold pressure and a socket set for orifice replacement

whether mounted in the outside air hood or the return air plenum

Designed for specific use in York

Emerson Alco 065555 Expansion Valve Els PW 17895 This is usually caused byThe Emerson Alco 065555, specifically the TCLE 5 HW 100, is a high performance thermal expansion valve (TXV) designed for precision superheat control in commercial refrigeration and air conditioning systems. This unit is engineered for R22 and R407C refrigerants, providing a 5 ton nominal capacity. Featuring a 5 foot capillary tube and a 1 4" SAE flare external equalizer, it ensures accurate sensing and response to evaporator pressure fluctuations.