Lochinvar & A.O. Smith LWCO Probe Kit — SKU 100306917
The Lochinvar & A.O. Smith 100306917 LWCO Probe Kit is an OEM replacement component designed to restore the low water cut-off (LWCO) sensing function on compatible Lochinvar and A.O. Smith boilers. The LWCO probe is a critical safety element — it continuously monitors boiler water level and signals the control to shut down the burner if water drops below a safe operating threshold, preventing costly heat exchanger damage and potential hazardous conditions.
Why Replace Your LWCO Probe?
Over time, probe electrodes can accumulate scale, corrosion, or mineral deposits that degrade sensing accuracy. A compromised probe may cause nuisance shutdowns or, worse, fail to detect a genuine low-water condition. Replacing with a genuine OEM probe kit ensures your boiler’s safety system performs as designed.
Key Features
- OEM replacement probe kit for Lochinvar & A.O. Smith boilers
- Restores accurate low water cut-off (LWCO) sensing performance
- Designed for direct compatibility with supported Lochinvar and A.O. Smith boiler models
- Helps prevent dry-fire conditions and heat exchanger damage
- Supports safe, reliable boiler operation in residential and commercial hydronic systems
- Easy service replacement to minimize system downtime
Application
This probe kit is intended for use as a service or maintenance replacement on Lochinvar and A.O. Smith boilers equipped with an LWCO probe-type safety control. Always verify compatibility with your specific boiler model and serial number before installation. Installation should be performed by a qualified HVAC/R or plumbing technician in accordance with local codes and the manufacturer’s service documentation.
