Before replacing the switch

Does this fit all Weil McLain boilers

Enhanced System Safety: Critical for protecting the heat exchanger and maintaining HVAC safety switch standards

These are identical units

we recommend using long flare nuts if the tee is installed near a compressor to maximize pull-out resistance

MARS 12755 Run Capacitor Before replacing the switchThe MARS 12755 is a high performance 50 5 MFD 370V round dual run capacitor engineered for demanding HVACR service environments. This dual run capacitor features a heavy duty aluminum case and facilitates the simultaneous operation of both the compressor and the condenser fan motor. Designed to withstand extreme ambient conditions, it operates within a temperature range of 40C to +70C and meets EIA 456 A standards for long term reliability. The MARS