Using a non-OEM switch with a different set point can lead to unsafe operating conditions or frequent system lockouts

look at the end of the motor shaft

or diagnostic LED codes indicating a "switch stuck open" error

It must be manually depressed once pressure is restored above the set point

Amana-Goodman TX3N2 TXV 30067439-890 Using a non-OEM switch withThe Amana Goodman TX3N2 is a professional grade non bleed thermostatic expansion valve (TXV) kit engineered for 2. 5 to 3 ton residential and light commercial HVAC systems. This OEM replacement part is specifically calibrated for R22 service, providing precise refrigerant metering to the evaporator coil. Unlike fixed orifice systems, the TX3N2 TXV utilizes a power assembly and sensing bulb to maintain optimal superheat, protecting the compressor from