Why is my "LWCO Active" light not turning on

the 56M13 and 56M1301 are technically identical parts and are interchangeable in all specified applications

It features an automatic reset function that closes the circuit once the plenum temperature drops to 170°F

Is the HH18HA416 compatible with other brands

Williams P322398 Pilot Assembly Els PW 17895 Why is my "LWCO Active"The Williams P322398 Pilot Assembly is a genuine OEM PowerPile generator component engineered specifically for natural gas gravity direct vent wall furnaces. Designed as the direct factory replacement for the discontinued P323415, this assembly is essential for millivolt controlled systems that operate independently of external electrical power. It features a high output 750 millivolt thermopile that converts thermal energy from the pilot flame into