Jandy JXi Liquid Propane Low-NOx Pool and Spa Heater 400K BTU JXI400P Parts & Diagram
Replacement parts and exploded parts diagram for the Jandy JXi Liquid Propane Low-NOx Pool and Spa Heater 400K BTU (model JXI400P). Find the part on the diagram, then look for the same number (#) next to each part in the Available Parts list and add the parts you need to your cart.
Parts marked Alternate are compatible replacements from other manufacturers.
Other Parts on This Diagram
These parts are not listed for online purchase. Contact us with the diagram number and part number to order.
- #2 – R0592500 – JXI Jacket Corner Post (Cabinet Assembly)
- #3 – R0592600 – JXI Base Kit (Cabinet Assembly)
- #4 – R0592700 – JXI Front/ Back Panel (Cabinet Assembly)
- #5 – R0592900 – 2/SET Side Panel Kit (Cabinet Assembly)
- #7 – R0593300 – JXI Jacket Hardware Kit (Cabinet Assembly)
- #9 – R0591800 – JXI GAS Inlet & Electric Hole Plug Kit (Cabinet Assembly)
- #9 – R0590200 – JXI Exhaust Elbow Assy (Combustion Chamber Assembly)
- #10 – R0590400 – JXI Band Clamp Kit (Combustion Chamber Assembly)
- #11 – R0590500 – JXI Internal Refractory Repl Kit (Combustion Chamber Assembly)
- #14 – R0590800 – JXI Combustion Chamber Lid (Combustion Chamber Assembly)
- #16 – R0305400 – JXI Sight Glass Kit (Combustion Chamber Assembly)
- #18 – R0591000 – JXI External Refractory Kit (Combustion Chamber Assembly)
- #20 – R0589405 – JXI400 Copper Heat Exchanger (Combustion Chamber Assembly)
- #21 – R0805805 – JXI400 Heat Exchanger W/ Header & Combustion Chamber (Combustion Chamber Assembly)
- #22 – R0591200 – JXI AIR Intake Grate (Burner Assembly)
- #26 – R0591705 – 400 JXI Burner GAS Supply System Kit (Burner Assembly)
- #29 – R0589700 – JXI Thermal Regulator Valve (Water System)
- #31 – R0446000 – 2/PK Drain Plug W/ Oring (Water System)
- #37 – R0449000 – 2" x 2 1/2" Tail Piece With O-Ring and Coupling Nut Set of 2 (Water System)
- #38 – SEAQL1001 – RS Temp Sensor Aqualink Sweep Elbow (Water System)
- #42 – R0725203 – 400K JXI Flow Plate Assy (Water System)
- #43 – JXIVFKIT – JXI Versaflo Bypass Accessory Kit (Water System)
- #52 – R0456500 – JXI/ LXI/ Legacy Temperature Sensor (Electrical System)
Please confirm your model number matches your existing equipment before ordering.
GTIN:
SKU: DIAGRAM-JXI400P
Brand: Jandy
Price range
$25.18 - $839.68
Tax and shipping are calculated at checkout.

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Key Features
- Exploded parts diagram for the Jandy JXi Liquid Propane Low-NOx Pool and Spa Heater 400K BTU (model JXI400P)
- 34 replacement parts available to order online
- Diagram number shown next to every part for easy matching
- Genuine Jandy replacement parts
- Add multiple parts to your cart at once