the issue is likely the inducer or venting

for LP operation

this normally closed (NC) switch automatically opens the electrical circuit when the plenum temperature exceeds the 180°F safety threshold

If it indicates an L185F (Limit 185°F) and matches the 61F series physical profile

Rheem-Ruud 61-25414-40 Piston Kit 30067439-890 the issue is likely theThe Rheem Ruud 61 25414 40 Flowcheck Piston Kit is a precision engineered fixed orifice metering device designed to regulate refrigerant flow within residential and light commercial HVAC systems. For technicians tasked with maintaining optimal superheat and evaporator efficiency, this OEM Rheem replacement part ensures a precise pressure drop across the liquid line. Featuring a 0. 040 inch orifice diameter, the piston is machined with five