Armstrong International D25519 Repair Kit Els PW 17895 What causes a potential relay

What causes a potential relay like the 940-0001-60 to fail

Technicians often see the blower fan running continuously or the furnace short-cycling (shutting down before the thermostat set-point is reached)

this furnace fan limit switch ensures accurate sensing and reliable switching in high-cycle environments

My blower is making a loud thumping noise

Armstrong International D25519 Repair Kit Els PW 17895 What causes a potential relayThe Armstrong International D25519 Repair Kit is a critical OEM maintenance solution for restoring the integrity of 1 2" and 3 4" TS 2 series steam traps. As a direct replacement for the legacy 6231299 kit, this K 370 series kit provides the comprehensive internals required to address common failure points in thermostatic steam traps. The assembly includes a precision engineered bellows assembly, a hardened seat, and a high temperature gasket,