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OEM Hayward FDXLBVS1930 Blower Vacuum Switch is engineered for use with Universal H-Series Low NOx heaters to regulate airflow and maintain combustion integrity. This critical switch verifies proper blower operation before allowing ignition, safeguarding the heater from malfunctions related to inadequate air supply. Built with long-lasting materials, it stands up to repeated use and exposure in challenging poolside environments. Whether replacing a failed component or performing preventive maintenance, this switch is essential for preserving safety and maintaining consistent heater performance.
Highlights
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Designed for Hayward Low NOx Models: OEM switch fits H150FD through H500FD units, ensuring accurate airflow detection and ignition safety
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Controls Airflow for Reliable Ignition: Prevents system start-up unless proper blower vacuum is detected, avoiding combustion hazards
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Protects Against Overheating Risks: Maintains safe temperature levels by stopping operation during low or obstructed airflow
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High-Quality Construction for Durability: Manufactured with robust, heat- and moisture-resistant components for long-lasting use
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Supports Long-Term Heater Performance: Integral to repair routines and system upkeep, promoting efficiency and dependable heating cycles
Compatibility
- Hayward H-Series Heaters Models: H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H500FD
Additional Info
Diagnosing Airflow Control Failures
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blower turns on but heater doesn’t ignite
low pressure reading in blower chamber error
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Specs and Local Price Check
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Confirming Fit and Compatibility
fdxlbvs1930 compatible with all h-series low nox
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Diagram

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