Ao Smith 100109944 Ignition Control Board Btn Series

Product Description

The AO SMITH 100109944 is an ignition control board designed for use in commercial water heaters within the BTN Series product line. This board manages the ignition sequence and burner operation, serving as the central electronic control that initiates and monitors the combustion process. Licensed plumbers and commercial HVAC-plumbing technicians are the primary installers of this component. The 100109944 is a direct OEM replacement part, making it a reliable choice when restoring proper ignition function to a BTN Series unit that has experienced control failure or board damage.

This ignition control board is intended for BTN Series commercial water heaters. It is suited for commercial applications where consistent hot water delivery is critical, such as light commercial facilities, multi-unit residential buildings, and similar installations relying on AO SMITH BTN Series equipment. Replacement of this board is typically required when the unit fails to ignite, displays control-related fault codes, or exhibits erratic burner cycling that points to a failed control board rather than a gas valve or thermostat issue.

Key Features

• OEM ignition control board engineered specifically for BTN Series water heaters
• Manages ignition sequencing and burner operation for consistent combustion
• Direct replacement part reduces diagnostic complexity during service calls
• Designed to restore proper burner control function without field modification

Compatibility

Compatible with AO SMITH BTN Series water heaters, including the BTN 180 model.

Installation Notes

Installation should be performed by a licensed plumber or qualified service technician familiar with commercial water heater controls. Before servicing, shut off the gas supply and disconnect electrical power to the unit. Handle the control board carefully to avoid electrostatic discharge damage to sensitive components. Refer to the unit service manual and applicable local codes for proper wiring connections and startup procedures.

Technical Specifications

• Application: BTN Series Commercial Water Heaters

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109944