Lochinvar & A.O. Smith 100278114 Sensor 340155-7026 this is the current direct

this is the current direct replacement for the RLY2210 and RLY2210K control boards

The most common failure points are dust accumulation causing imbalance

The return direction (Normally Open or Normally Closed) is determined by how the actuator is mounted to the damper shaft

Precise mechanical stroke adjustment ensures full seat engagement and reduces hunting in proportional control systems

For proper mechanical operation and gravity drainage of the discharge line

Lochinvar & A.O. Smith 100278114 Sensor 340155-7026 this is the current directAs a seasoned technician, you know that accurate temperature feedback is the backbone of any high efficiency condensing boiler or water heater. The Lochinvar & A. O. Smith 100278114 Sensor is a critical 10k Ohm NTC thermistor designed for precision Domestic Hot Water (DHW) monitoring. This genuine OEM replacement part ensures the control board receives real time resistance data to modulate firing rates and maintain setpoint stability. Whether you are