How do I verify if the 102857-05 limit switch is defective

As long as the motor features a 1/2-inch shaft and spins in the CW direction

What are the wiring positions for this dual run capacitor

critical for maintaining boiler efficiency and preventing sensor lag in HVAC hydronic applications

Rated at 27W and 1000V

Lennox 38M68 Limit Switch 321142-301 How do I verify ifThe Lennox 38M68 Limit Switch is a critical safety component designed for precise thermal regulation within residential and light commercial HVAC systems. This Type L205 30F furnace limit control features a 3 inch insertion depth, specifically engineered to monitor heat exchanger temperatures and prevent hazardous overheating conditions. With an auto reset 175 205F range, the switch opens the circuit at 205F and automatically closes at 175F to restore