Description
The Hydrotherm 04-1346 is an OEM replacement flame sensor designed to deliver dependable flame detection in Hydrotherm boiler and heating systems. Flame sensors are a critical safety component in any gas-fired appliance — they confirm the presence of a burner flame and signal the control system to allow continued gas flow. If the sensor fails to detect a flame, the control board shuts down the gas valve, preventing dangerous unburned gas accumulation.
Key Features
- OEM replacement part engineered for Hydrotherm heating systems
- Ensures accurate and responsive flame detection for safe burner operation
- Helps prevent nuisance lockouts caused by a worn or contaminated sensor
- Direct drop-in replacement for fast, straightforward installation
- Supports proper system safety shutdowns when no flame is present
Application
- Compatible with select Hydrotherm boilers and heating appliances requiring part number 04-1346
- Ideal for service technicians performing routine maintenance or troubleshooting ignition lockout faults
Why Replace Your Flame Sensor?
Over time, flame sensors can accumulate oxidation or carbon buildup on the sensing rod, leading to weak or intermittent signal readings. This can cause repeated system lockouts, short cycling, or failure to ignite. Replacing the flame sensor with a genuine Hydrotherm OEM part restores proper system communication between the burner and control board, ensuring safe and reliable heating performance season after season.
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