Carrier HH12ZB170 Limit Switch It includes the float and

It includes the float and the necessary seals/springs to repair the vent section

System Protection: Reduces the risk of damage to the gas control valve and tank components caused by abnormal heat accumulation

or "chattering" sounds from the solenoid suggesting inconsistent power delivery

While the 125401 sensor lead is used across several series

304100 is the official manufacturer part number (MPN) for the Model F-26 gasket used across several legacy and modern M&M water feeders

Carrier HH12ZB170 Limit Switch It includes the float andThe Carrier HH12ZB170 Limit Switch is a critical safety component designed for precise thermal monitoring in high efficiency furnace and air handling units. This OEM replacement limit switch features a fixed temperature range, engineered to open at 170F and automatically reset when temperatures drop to 130F. As an L170 40F thermal switch, it provides essential protection against heat exchanger overheating by interrupting the burner circuit if airflow