Lochinvar & A.O. Smith 100110859 Harness Control R-134A Designed for seamless integration with

Designed for seamless integration with EHU-600

For T-4000 series units equipped with specialized security screws

Reduced Downtime: Simplifies field repairs without requiring full pneumatic valve actuator replacement

Durable Construction: Brass body provides excellent corrosion resistance and mechanical strength for industrial plumbing

This is the authorized technical successor to the 100165861 pilot assembly

Lochinvar & A.O. Smith 100110859 Harness Control R-134A Designed for seamless integration withWhen you're out on a call for a Lochinvar or A. O. Smith unit that won't fire or is throwing intermittent communication codes, the Lochinvar & A. O. Smith 100110859 Harness Control is often the culprit. This OEM replacement wire harness is engineered to maintain high integrity signal paths between the Smart System control board, the display interface, and critical safety components like the air pressure switch and gas valve. As a veteran in the field,