The Rinnai Thermistor Sensor, Inlet Water (105002020) is an authentic OEM replacement component for i-Series Plus combination boilers. This sensor measures the temperature of incoming domestic cold water, allowing the boiler to calculate precisely how much heat energy is needed to reach the target domestic hot water (DHW) temperature. Inaccurate inlet sensing can lead to scalding water delivery or insufficient heating output. Replace with this OEM sensor to restore proper DHW temperature control.
- Genuine OEM Rinnai replacement thermistor sensor
- Compatible with Rinnai i-Series Plus combination boilers
- Measures incoming cold water temperature for precise DHW control
- Prevents scalding and ensures consistent hot water delivery
- OEM fitment ensures accurate temperature readings