0 ohms) across the terminals when the switch is below 135°F

Using a lower VA rating may cause the transformer to overheat and fail prematurely

removing the tab adjusts the set point to 88°F

and 220J models

Reznor 123976 Fan Control 30067439-890 0 ohms) across the terminalsThe Reznor 123976 Fan Control is a critical OEM replacement component engineered for precise thermal management in industrial and commercial heating applications. This F135 40F thermostatic switch is designed to regulate blower fan cycling by monitoring heat exchanger temperatures, ensuring the fan only operates within the 135F to 40F range. By maintaining these specific operational thresholds, the Reznor 123976 prevents the delivery of cold air