122-426

The YORK/ETC Lower Limit Switch L150-130°F is a critical safety component designed for high-performance heating systems and furnaces. Functioning as a high limit control, this fan disc switch monitors the internal temperature of the heat exchanger to prevent overheating. It is engineered to automatically interrupt the electrical circuit when temperatures reach the 150°F limit and reset once the unit cools to 130°F. If your furnace is short-cycling or failing to provide consistent heat, a faulty limit sensor may be the cause. This replacement part ensures your HVAC system operates within safe thermal parameters, protecting both the equipment and your home from potential heat damage. Ideal for HVAC technicians and homeowners performing furnace repairs, this temperature-sensitive switch provides reliable thermal protection and helps maintain the longevity of your heating equipment.
Type: Fan Disc High Limit Control Switch
Size: Standard replacement disc size
Application: Used as a safety limit control in residential and commercial furnaces and heating units to monitor heat exchanger temperatures.
Specifications: Temperature Rating: Opens at 150°F, Closes at 130°F (L150-30); Reset Type: Automatic; Switch Type: Normally Closed