the Reznor 196950 Limit Switch is the 250F manual reset safety component you need to restore reliable operation

What is the difference between FLA and LRA on this part

Using a genuine Rheem-Ruud 42-21571-08 ensures the coil resistance is matched perfectly to the transformer output

preventing temperature "droop" in the system

Solid-State Reliability: Utilizes durable electronic components to provide consistent performance over mechanical relay alternatives

Ranco F25-107 Control 30067439-890 the Reznor 196950 Limit SwitchThe Ranco F25 107 is a specialized defrost termination and fan delay control engineered for high performance management in commercial refrigeration systems. This SPDT defrost control is critical for electric heat, hot gas, and reverse cycle setups, ensuring the evaporator fan only engages once the coil reaches the optimal temperature. By utilizing a 60 inch capillary with a 3 8" x 4" cross ambient bulb, the F25 107 effectively prevents warm, moist air