Honeywell Home WT8840B1000/U Water Heater Gas Valve Control

Ensure dependable temperature control and safer operation of water heaters with the Honeywell Home WT8840B1000/U Water Heater Gas Valve Control. Built as a direct trade replacement for WV8840 valves used in A.O. Smith and Bradford White appliances, this control simplifies field service and minimizes downtime. The unit’s integrated NTC temperature sensor reads water temperature up to 221°F (105°C), delivering accurate feedback for reliable temperature monitoring and efficient burner control. Engineered for standing pilot applications and immersion well sensing, the WT8840B1000/U provides predictable performance in both residential and light commercial systems. Technicians benefit from straightforward installation and improved troubleshooting, while facility managers gain consistent temperature data that can feed into building monitoring, safety, and even surveillance systems that track equipment health. Backed by Honeywell Home quality, this control helps reduce service calls and extends appliance life through stable operation. Upgrade your water heater control to a proven solution—order the WT8840B1000/U or contact us for compatibility and installation guidance.

• Direct replacement for WV8840 valves used in A.O. Smith and Bradford White heaters for fast, reliable field service
• Integrated NTC temperature sensor reads up to 221°F (105°C) to deliver precise water temperature monitoring and reduce overheating risk
• Designed for standing pilot applications with immersion well sensing to ensure consistent, long-term performance
• Improves system safety and uptime by stabilizing gas valve control and simplifying troubleshooting for service technicians
• OEM-quality Honeywell Home construction for dependable operation in commercial and residential installations
• Supports building monitoring and safety workflows by providing accurate temperature data for facility surveillance and equipment monitoring