Whether you are troubleshooting a unit that fails to kick on or one that is cycling erratically

Key Benefits: Precise Thermal Cut-Out: Calibrated to open at exactly 195 degrees Fahrenheit to prevent heat exchanger damage

Does this unit include internal fusing

Ensures reliable HVAC electrical connectivity between control boards and system peripherals

it maintains HVAC actuator compatibility across a wide ambient temperature range from -40°F to 150°F

Lennox 43H88 Relay Whether you are troubleshooting aThe Lennox 43H88 Blower Relay is a heavy duty 3PDT (Three Pole Double Throw) electromagnetic switch engineered for precise load management in commercial and residential HVAC systems. Operating on a 24V coil voltage, this inductive rated relay is a direct replacement for the legacy Lennox 43H8801, ensuring a 1: 1 fit for technicians servicing Lennox packaged units and heat pumps. With a 15 Amp contact rating, the 43H88 provides the switching capacity