such as pipe wrenches and a mallet to break the gasket seal

and ceramic wire nuts for versatile field wiring

While it may appear similar to cartridges used in the WM97+ or Taco 00 series

the element is likely open

Lennox 80W57 Pressure Switch 340793-762 such as pipe wrenches andThe Lennox 80W57 Pressure Switch is a critical safety component designed for single stage gas furnaces. This genuine OEM Lennox furnace pressure switch is calibrated to actuate at . 65" WC (water column), ensuring that the combustion air inducer motor is generating sufficient negative pressure before the ignition sequence begins. Engineered with a single pole single throw (SPST) configuration and Normally Open (N. O.) contacts, this switch protects