Lennox 88K38 Air Sensor 323613-751 Always inspect the motor shaft

Always inspect the motor shaft for burs or corrosion and ensure the set screw is seated on the flat portion of the shaft for a secure mechanical connection

What are the specific mounting requirements for this model

This switch is typically mounted on the burner housing or near the heat exchanger where it can accurately monitor the internal plenum temperature

Dead-Ended Capacitive Sensor: Proprietary stainless steel technology requires minimal amplification and ensures high field acceptance in rugged industrial applications

from blocked flues to ignition failures

Lennox 88K38 Air Sensor 323613-751 Always inspect the motor shaftThe Lennox 88K38 Discharge Air Sensor is a critical diagnostic and control component designed for precise discharge air temperature monitoring in high performance Lennox HVAC systems. This OEM Lennox sensor (Catalog # 88K38 88K3801) is required for EVENHEAT operation in air handlers and is a central element of the iHarmony zoning system. By providing real time supply air temperature data to the control board or zone module, it allows for proactive