Carrier 311213-401 Collector Box 318820-201 Disconnect the probe from the

Disconnect the probe from the control board and use a multimeter to check the resistance (ohms)

Factory-Installed Solenoid: Includes the 24V coil pre-mounted

This assembly fits the standard bore size for the E-series

preventing premature wear on rotating components

To use the limit switch in a low voltage or millivolt circuit

Carrier 311213-401 Collector Box 318820-201 Disconnect the probe from theThe Carrier 311213 401 Collector Box is a critical OEM replacement part designed for high efficiency condensing furnaces. Engineered to meet precise factory tolerances, this cold end collector box manages the flow of acidic condensate, directing it from the heat exchanger to the drain system. Its durable composite construction is specifically formulated to withstand the corrosive nature of combustion byproducts, preventing leaks that lead to pressure