The Rinnai System Thermistor (805000179) is a genuine OEM replacement sensing component for i-Series Plus combination boilers. This thermistor provides the control board with system water temperature data, enabling accurate boiler modulation and safety protection functions. A faulty system thermistor can cause erratic operation, error codes, or safety shutdowns. Replace with this OEM sensor to restore accurate system temperature monitoring and stable boiler performance.
- Genuine OEM Rinnai replacement system thermistor
- Compatible with Rinnai i-Series Plus combination boilers
- Monitors system water temperature for precise boiler control
- Resolves error codes caused by temperature sensing faults
- Restores accurate temperature feedback for optimal system performance