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Jandy JXi Heater Gas Valve | R0591400

Jandy SKU: R0591400

Jandy JXi Heater Gas Valve | R0591400

Jandy SKU: R0591400
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Jandy R0591400 Gas Valve for JXi Pool and Spa Heaters

The Jandy R0591400 Gas Valve is a genuine replacement gas valve for select Jandy JXi pool and spa heaters. This valve controls the flow of gas to the heater burner assembly and is an important safety and performance component in the heater ignition system.

This replacement gas valve is commonly used when the original valve has failed, is not opening properly, is not supplying gas to the burner, or has been diagnosed by a qualified technician as the cause of an ignition or heating issue.

Product Features

  • Genuine Jandy replacement heater part
  • Manufacturer part number: R0591400
  • Replacement gas valve for Jandy JXi heater applications
  • Controls gas flow to the heater burner assembly
  • Used on JXi 200, 260, and 400 heater models
  • Designed for pool and spa gas heater service and repair
  • Professional installation strongly recommended

Product Details

Brand Jandy
Part Number R0591400
Product Type Heater Gas Valve
Heater Series Jandy JXi
Compatible Heater Sizes 200, 260, and 400 models
Application Pool and spa gas heater repair

Compatibility

  • Jandy JXi 200 heater models requiring part number R0591400
  • Jandy JXi 260 heater models requiring part number R0591400
  • Jandy JXi 400 heater models requiring part number R0591400
  • Compatible Jandy heater applications where the original parts diagram lists R0591400 as the gas valve

Common Signs This Part May Need Replacement

  • Heater attempts ignition but does not light
  • Gas valve does not open when commanded by the control board
  • No gas flow to the burner assembly after proper troubleshooting
  • Heater shows ignition failure after other causes have been ruled out
  • Valve has been diagnosed as faulty by a qualified pool heater technician
  • Gas valve is damaged, corroded, or leaking

Important Notes

  • This item is the gas valve only.
  • Burner kit, blower assembly, igniter, flame sensor, gas orifice kit, control board, wiring, heater manifold parts, and additional heater components are sold separately unless otherwise stated.
  • Verify your exact heater model, BTU size, gas type, and parts diagram before ordering.
  • This part should only be installed on compatible Jandy JXi heaters that require part number R0591400.
  • Ignition failures can also be caused by gas supply issues, incorrect gas pressure, blocked burner components, faulty ignition parts, wiring problems, airflow issues, or control board failure.
  • Gas heater repairs should be performed by a qualified pool heater technician or licensed gas professional.
  • Never modify, bypass, or force operation of a gas valve or heater safety system.

Installation Notes

  • Installation should be performed by a qualified professional familiar with gas pool heaters.
  • Turn off electrical power to the heater before service.
  • Shut off the gas supply before removing or replacing any gas component.
  • Verify correct gas type and heater configuration before installation.
  • Gas pressure, combustion, and leak testing must be completed according to the heater manual and local code.
  • Do not operate the heater if gas odor, leakage, improper ignition, or abnormal flame behavior is present.
  • After installation, confirm safe ignition, proper burner operation, and normal heater shutdown.

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Maintenance Tips

  • Have gas heater operation inspected by a qualified technician during routine service.
  • Keep the heater area clear of leaves, debris, chemicals, and flammable materials.
  • Maintain proper gas supply pressure and ventilation according to the heater manual.
  • Do not ignore repeated ignition errors or lockouts.
  • Maintain proper pool water chemistry to help protect heater components from premature damage.
  • If the heater fails to ignite after replacement, inspect the full ignition, airflow, gas supply, and control system before replacing additional parts.
Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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