Carrier HD42AR227 Blower Motor L99H008 Lennox often uses these two

Lennox often uses these two numbers interchangeably for the same interlock switch assembly

this specific model is rated for low-pressure steam applications only

Repeated tripping usually indicates a cracked heat exchanger

The sensor features a robust glass-to-metal hermetic seal that protects the internal plug-in cell from the degrading effects of high humidity

For technicians servicing Aaon rooftop units or chillers

Carrier HD42AR227 Blower Motor L99H008 Lennox often uses these twoThe Carrier HD42AR227 Blower Motor is an ECM X13 constant torque motor designed for high efficiency performance in residential furnaces and air handlers. This 1 3 HP motor operates on a 208 230V single phase circuit, providing reliable airflow management with variable speed capabilities. As a direct OEM replacement motor, the HD42AR227 features a 48 NEMA frame size and a ball bearing design for extended operational life under high static conditions.