Lochinvar & A.O. Smith 100110588 Flow Switch

The Lochinvar & A.O. Smith 100110588 Flow Switch is a critical safety and monitoring component engineered for high-efficiency hydronic systems. As an OEM replacement flow switch, this paddle-style device is designed to detect the presence or absence of fluid movement, providing essential feedback to the appliance control board. It serves as a direct replacement for obsolete part numbers, including the A.O. Smith 9005680205, ensuring seamless integration during field repairs. This HVAC flow sensor is widely utilized across Lochinvar Power-Fin and Copper-Fin boiler models, as well as commercial water heaters, to prevent "no-flow" conditions that can lead to heat exchanger damage. Built with durable construction for demanding mechanical room environments, it features an adjustable set point to fine-tune sensitivity based on specific system requirements. For contractors, installing this genuine Lochinvar part ensures that the system maintains operational efficiency while adhering to original manufacturer specifications for safety and performance.

Key Benefits:

• Broad Compatibility: Engineered as a standard commercial boiler part for Lochinvar and A.O. Smith units, including various Power-Fin and Copper-Fin series.
• System Protection: Acts as a primary low water flow safety mechanism, triggering system shut-down if fluid velocity drops below safe thresholds.
• Precision Monitoring: Features a sensitive flow switch paddle design that reliably activates or deactivates circuits based on real-time fluid dynamics.
• Technical Reliability: Constructed from high-quality materials to resist corrosion and scale buildup, extending the service life of the hydronic heating system.

Common Questions:

How do I troubleshoot a Lochinvar flow switch error?
Technicians should first verify that the minimum flow rate is being met and check for scale buildup on the paddle. If the circuit remains open despite adequate flow, verify the wiring continuity before replacing the 100110588 unit.

Can I use the 100110588 as a replacement for part 9005680205?
Yes, the 100110588 Flow Switch is the official OEM replacement for the discontinued A.O. Smith 9005680205, maintaining the same electrical and mechanical specifications.

What causes a flow switch to fail in A.O. Smith water heaters?
The most common causes include heavy mineral deposits on the sensing element, electrical shorts in the flow control assembly, or physical damage to the paddle mechanism due to system debris.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.