While some control modules are rated for 208/240V input

Direct OEM compatibility ensures precise lead lengths and wattage delivery

For technicians performing a Lennox furnace repair

High-Visibility Red Lens: Provides clear notification of system status even in high-ambient-light mechanical rooms

the FS4-3COV provides the necessary physical barrier between the technician and the live electrical terminals

Weil McLain 510-300-014 Spill Switch While some control modules areReplacing a tripped or faulty Weil McLain 510 300 014 is a standard safety procedure for service technicians maintaining Weil McLain CGa, CG, and CGx gas boilers. This 240F Spill Switch M R is a critical safety control mounted on the draft hood to detect flue gas spillage caused by chimney blockages or downdraft conditions. As a manual reset spill switch, it is designed to break the safety circuit and lock out the boiler once temperatures reach the