House Parts [Lifetime Warranty] IDXLFLS1930 Flame Sensor for Hayward Universal H-Series Induced Draft and Gas Pool Heater - Fits H150FD H200FD H250FD H300FD H400FD H500FD FDN FDP IDL IDL2 Models
IDXLFLS1930 flame sensor and igniter replacement kit for Hayward Universal H-Series pool heaters with mounting screws.
Dimensional diagram of IDXLFLS1930 flame sensor replacement for Hayward Universal H-Series pool heaters.
Hands holding IDXLFLS1930 flame sensor replacement for Hayward Universal H-Series pool heaters.
IDXLFLS1930 flame sensor replacement for Hayward pool heaters showing durable ceramic, stainless steel, and alloy parts.
IDXLFLS1930 flame sensor for Hayward pool heaters, highlighting high-temperature resistance up to 210°F.
IDXLFLS1930 flame sensor replacement kit for Hayward Universal H-Series pool heaters with compatibility list.
IDXLFLS1930 flame sensor replacement kit for Hayward Universal H-Series pool heaters with installation instructions.
IDXLFLS1930 flame sensor replacement for Hayward pool heaters compared against worn-out, corroded sensors.
IDXLFLS1930 flame sensor replacement kit with two sensors and mounting screws for Hayward Universal H-Series heaters.
IDXLFLS1930 flame sensor and igniter replacement kit for Hayward Universal H-Series pool heaters with mounting screws.
Dimensional diagram of IDXLFLS1930 flame sensor replacement for Hayward Universal H-Series pool heaters.
Hands holding IDXLFLS1930 flame sensor replacement for Hayward Universal H-Series pool heaters.
IDXLFLS1930 flame sensor replacement for Hayward pool heaters showing durable ceramic, stainless steel, and alloy parts.
IDXLFLS1930 flame sensor for Hayward pool heaters, highlighting high-temperature resistance up to 210°F.
IDXLFLS1930 flame sensor replacement kit for Hayward Universal H-Series pool heaters with compatibility list.
IDXLFLS1930 flame sensor replacement kit for Hayward Universal H-Series pool heaters with installation instructions.
IDXLFLS1930 flame sensor replacement for Hayward pool heaters compared against worn-out, corroded sensors.
IDXLFLS1930 flame sensor replacement kit with two sensors and mounting screws for Hayward Universal H-Series heaters.
Lifetime Warranty

[Lifetime Warranty] IDXLFLS1930 Flame Sensor for Hayward Universal H-Series Induced Draft and Gas Pool Heater - Fits H150FD H200FD H250FD H300FD H400FD H500FD FDN FDP IDL IDL2 Models

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IDXLFLS1930 Flame Sensor Replacement

Key Features

  • Direct replacement for original equipment flame sensor.
  • Detects the presence of flame in the combustion chamber.
  • Signals the ignition control module to maintain gas flow.
  • Essential safety component for proper heater operation.
  • Constructed from materials designed for high-temperature environments.

Replaces / Cross-Reference Part Numbers

  • IDXLFLS1930

Compatibility & Fitment

  • Brand: Hayward
  • Series: Universal H-Series Low NOx Induced Draft Heaters
  • Fits both Natural Gas (FDN) and Propane (FDP) models.
  • Compatible Models Include: H150FD, H200FD, H250FD, H300FD, H350FD, H400FD, H500FD
  • Also fits IDL and IDL2 models such as H250IDL2 and H350IDL2.

When to Replace

  • Heater ignites briefly then shuts off after a few seconds.
  • Heater fails to detect a flame and locks out.
  • Control panel displays an error code related to ignition or flame sense failure.
  • Visible corrosion, heavy carbon buildup, or cracking on the sensor's metal rod or ceramic insulator.

Installation Tips

  • Disconnect all electrical power and turn off the gas supply to the heater before service.
  • The flame sensor is located inside the burner chamber, positioned in the direct path of the flame.
  • Disconnect the single wire and remove the mounting screw to release the old sensor.
  • Install the new sensor and ensure the rod is correctly positioned without touching other metal components.
  • Securely fasten the mounting screw and reconnect the wire.
  • After installation, restore power and gas, then verify the heater cycles correctly.

FAQ

This flame sensor is designed for Hayward Universal H-Series induced draft and gas pool heaters. Compatible model families include H150FD, H200FD, H250FD, H300FD, H400FD, and H500FD, including FDN, FDP, IDL, and IDL2 variants. Specific compatible models include H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H250IDL, H300IDL, H400IDL, H250IDL2, H350IDL2, and H400IDL2. Because Hayward utilizes several closely related H-Series configurations, please confirm your heater model number and match it to part number IDXLFLS1930 before ordering.
This replacement part is designed to replace flame sensor IDXLFLS1930.
A failing flame sensor commonly causes ignition-related problems such as the heater attempting to light and then shutting down, short cycling, failure to prove flame, intermittent startup, or unexpected burner shutdown after ignition. If the igniter glows or the burners light briefly but the control board does not recognize a stable flame, the flame sensor is a primary component to inspect.
Replacing the flame sensor on Hayward Universal H-Series heaters is a straightforward service task that typically takes 10 to 20 minutes. You will generally need a screwdriver and a nut driver or small wrench, depending on the specific fastener style on your unit. Always ensure the electrical power and gas supply are shut off before opening the heater, and verify that the sensor wire is reconnected securely to ensure the control board receives the flame signal.
Yes. Flame sensors can stop functioning correctly if the sensing rod develops oxidation, soot, or other surface contamination. Before replacing the unit, inspect the sensor rod and its electrical connection. Note that a weak flame signal can also result from poor grounding, loose wiring, burner contamination, or ignition issues, so it is recommended to verify these factors during your diagnosis.
Check the sensor wire and terminal connection, the condition of the burner tray, igniter operation, and the heater's ground path. If the burner flame appears unstable, inspect the area for dirt, corrosion, or restricted gas flow. On pool heaters, moisture exposure, rust, and combustion residue are frequent causes of flame-sensing issues; cleaning the burner area and verifying a solid electrical ground can help prevent future failures.