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

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

  • Hayward: IDXLFLS1930
  • SKU: HAY-151-1584
  • Alternate Part Number: 6220-020
  • UPC: 610377625968

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 used on Hayward Universal H-Series induced draft and gas pool heaters. Based on the product title and available references, compatible model families include H150FD, H200FD, H250FD, H300FD, H400FD, and H500FD, including FDN, FDP, IDL, and IDL2 variants. Commonly referenced specific models include H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H250IDL, H300IDL, H400IDL, H250IDL2, H350IDL2, and H400IDL2. Because Hayward used several closely related H-Series configurations, it is best to confirm the heater model number and match the part number IDXLFLS1930 before ordering.
This replacement matches flame sensor part number IDXLFLS1930. No other clearly verified OEM cross-reference numbers were identified in the provided search context.
A failing flame sensor commonly causes ignition-related problems such as the heater trying 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 does not recognize a stable flame, the flame sensor is one of the first parts to check.
Usually no. On many Hayward Universal H-Series heaters, flame sensor replacement is a straightforward service job that takes about 10 to 20 minutes. Typical tools are a screwdriver and possibly a nut driver or small wrench, depending on the fastener style on your heater. Always shut off electrical power and gas supply before opening the heater, and reinstall the sensor wire securely so the control board can read the flame signal correctly.
Yes. Flame sensors can stop reading properly if the sensing rod develops oxidation, soot, or other surface contamination. Before replacing it, inspect the sensor and its connection. A weak flame signal can also be caused by poor grounding, loose wiring, burner contamination, or ignition problems, so it is smart to check those items during diagnosis.
Check the sensor wire and terminal connection, burner tray condition, igniter operation, and the heater ground path. If the burner flame is unstable, inspect for dirt, corrosion, or restricted gas flow. On pool heaters, moisture exposure, rust, and combustion residue are common causes of flame-sensing issues, so cleaning the burner area and verifying a solid electrical ground can help prevent repeat failures.