Rheem-Ruud 47-21900-01K Limit Switch always verify your specific model's

always verify your specific model's part list

Its robust aluminum construction resists common corrosive elements found in gas streams

it initiates a circuit break if temperatures exceed the factory-defined threshold

specifically the EK-032 model

Rheem-Ruud 47-21900-01K Limit Switch always verify your specific model'sThe Rheem Ruud 47 21900 01K Limit Switch is a critical OEM replacement part designed for technicians managing residential and commercial heating cycles. This high limit safety control features a 230F cut out temperature, engineered to provide positive circuit interruption in the event of an over temperature condition within the flanged airstream. As a Manual Reset device, it ensures that your furnace or water heater remains offline for inspection if