Johnson Controls A19ADB-31 Thermostat 30067439-890 maintaining exact dimensional compatibility with

maintaining exact dimensional compatibility with legacy hardware

Simplified Field Installation: The 1-pole design simplifies wire termination

An overflowing tray typically indicates a worn rear seal or a failing shell bearing on the drive shaft

Exact OEM Replacement: Designed as the direct substitute for Bard S8402-093

Johnson Controls A19ADB-31 Thermostat 30067439-890 maintaining exact dimensional compatibility withThe Johnson Controls A19ADB 31 is a heavy duty, single stage utility thermostat designed for high limit applications where a manual reset is required for safety and system protection. This high temperature limit control features a wide setpoint range of 90F to 325F, making it a reliable choice for commercial water heaters and industrial processing equipment. Built with a SPST switch that opens on a temperature rise, the unit ensures positive circuit