OEM Hayward Thermistor FDXLTER1930 is a precision temperature sensor engineered for Hayward Universal H-Series Low NOx heaters, compatible with models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, and H500FD. Installed in the manifold adapter inlet, this thermistor regulates the combustion air blower based on water temperature to ensure consistent heating. Built from high-quality materials, it offers long-lasting performance under demanding poolside conditions, helping maintain heater accuracy and efficiency.

• Designed for Universal H-Series Models: Fits Hayward H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, and H500FD

• Regulates Heater Function: Controls blower operation by sensing water temperature, helping to maintain precise heat levels

• Installs at Manifold Inlet: Positioned in the manifold adapter inlet for optimal temperature detection and response

• Built for Poolside Durability: Made from robust materials to resist heat, moisture, and chemical exposure typical of pool environments

• OEM Fit and Reliability: Genuine Hayward part designed for seamless replacement and consistent performance in your heating system

• (1) Hayward FDXLTER1930 Thermistor

• Hayward H-Series FD Heaters Models: H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H500FD
  

Diagnosing Temperature Sensor Failures

heater shutting off early check fdxlter1930 sensor

hayward heater not maintaining temp properly

water temp reads wrong on h-series control panel

faulty thermistor in manifold causing erratic heat

fdxlter1930 replacement fixes blower activation issues

Compatible Heater Models and Fitment

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fdxlter1930 fits low nox models from h150fd to h500fd

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thermistor location on manifold adapter inlet

In-Store Purchase and Quick Replacement

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