OEM Hayward Blower Vacuum Switch FDXLBVS1930 is a key safety and performance component for Universal H-Series Low NOx pool heaters. This switch monitors blower operation to ensure consistent airflow, enabling proper combustion and safe heating performance. By detecting inadequate vacuum pressure, it prevents ignition under unsafe conditions and reduces the risk of overheating. Constructed from durable, high-quality materials, this vacuum switch is built for long-term reliability in demanding pool environments. It is an essential part for routine service and targeted repairs, helping maintain heater efficiency and operational safety.

• OEM Fit for Universal H-Series Heaters: Designed to work seamlessly with Hayward Low NOx models, ensuring precise airflow monitoring and ignition control

• Monitors Blower Vacuum Pressure: Helps regulate internal combustion airflow and prevents ignition during low or blocked airflow conditions

• Enhances Heating Safety and Efficiency: Supports safe operation by avoiding overheating and ensuring optimal system performance

• Constructed for Long-Term Use: Built from durable materials engineered to resist poolside environmental stress and frequent usage

• Essential for Maintenance and Troubleshooting: Ideal for resolving airflow-related errors and sustaining long-term heater function

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

Troubleshooting Blower and Ignition Issues

heater blower runs but wonÕt ignite check fdxlbvs1930

h-series heater clicking no flame vacuum switch failed

ignition sequence fails blower pressure not detected

heater locks out after blower runs replace switch

heater shuts off blower vacuum switch out of spec

In-Store Replacement and Fix Options

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walk-in service part for low nox blower control

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Compatible Heater Models and Fit

fdxlbvs1930 fits all h150fdn through h500fd heaters

vacuum switch for hayward low nox heaters in stock

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will fdxlbvs1930 match older low nox heater unit

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