Rugged Construction: Built to withstand the high-cycle demands of commercial gas-fired unit heaters

preventing ignition if airflow obstructions or mechanical failures are detected within the heat exchanger or venting assembly

Technicians should verify continuity across the terminals when the switch reaches the 105°F setpoint

it is typically used on the line side of the drive or replaced with a frequency-compensated model to ensure accurate status detection across the speed range

Weil McLain 383-600-070 Ignition Electrode Kit Els PW 17895 Rugged Construction: Built to withstandThe Weil McLain 383 600 070 Ignition Electrode Kit is a critical OEM maintenance component engineered specifically for high output condensing systems. As a veteran technician knows, maintaining precise spark gap and ceramic integrity is vital for avoiding the dreaded Weil McLain Ultra ignition fault. This comprehensive kit is a direct replacement for Weil McLain Ultra 550 and 750 boilers, as well as the SlimFit boiler series. It includes the high