Astralpool IXI / Zodiac JXi Gas Heater Parts

Astralpool IXI / Zodiac JXi Gas Heater Parts

Spare parts for Astralpool IXI and Zodiac JXi gas pool and spa heaters, in the 200 and 370 sizes. Find the part on the exploded diagrams below, note its item number, then open the matching listing.

Start With the Rating Plate

The rating plate is inside the heater, on the outside of the combustion chamber. It shows the model number, serial number and gas type, which Zodiac's JXi manual says are needed to identify the correct part. Check whether your heater is a 200 or a 370 before ordering size-specific parts: the heat exchanger, burner kit, manifold backplate kit and combustion chamber shelf.

Water System Parts Diagram

• Item 1: VersaFlo Integrated Bypass (WG000016)
• Item 2: Thermal Regulator Valve (TRV)
• Item 3: Bypass Kit (R0589800)
• Item 4: Drain Plug Kit (R0446000)
• Item 5: Gasket & Seals Kit (R0589500)
• Item 6: 200 Manifold Backplate Kit (R0590002)
• Item 6: 370 Manifold Backplate Kit (R0590005)
• Item 7: 3 Port Manifold, No Backplate (R0590101)
• Item 8: Water Pressure Switch Kit
• Item 9: Goody Bag Kit (R0593500)
• Item 10: Universal Half Union Kit, needs two (R0522900)
• Item 11: Sweep Elbow AquaLink Temp Sensor (WSEAQL1001)
• Item 12: Drain Cap Assembly Kit (R0523000)

Electrical System Parts Diagram

• Item 1: Ignition Control Kit (R0456901)
• Item 2: Transformer Kit (R0456301)
• Item 3: User Interface Kit (R0591901), obsolete
• Item 6: Air Pressure Switch Kit (R0456400)
• Item 7: Flue Temp Sensor (R0719401)
• Item 8: Water Pressure Switch Kit
• Item 9: Power Interface Board, PIB (R0719503)
• Item 10: Power Distribution Board, PDB (R0458101)
• Item 11: Temperature Sensor Kit (R0456500)
• Item 12: High Limit Temperature Sensors Kit (R0592301)
• Item 13: Igniter Kit (R0457502)
• Item 14: Power Interface Harness (R0457702)

Combustion Chamber Parts Diagram

• Item 3: Refractory Kit, Internal (R0590500)
• Item 4: Combustion Chamber Shelf, 200 only (R0590701)
• Item 5: Combustion Chamber Lid Kit (R0590800)
• Item 8: Igniter Kit (R0457502)
• Item 11: 200 Heat Exchanger Assembly (R0589402)
• Item 11: 370 Heat Exchanger Assembly (R0589405)

Burner Assembly (Fan and Gas Valve) Parts Diagram

• Item 1: Blower Assembly Kit (R0591100)
• Item 2: Air Intake Grate Kit (R0591200)
• Item 3: Blower Intake Orifice Kit, 370 (R0734102)
• Item 4: Gas Valve (R0739300)
• Item 5: 200 Burner Kit (R0591702)
• Item 5: 370 Burner Kit (R0591705)
• Item 6: Direct Air Intake Orifice Kit (R0724600)

Tap a diagram to open it full size. Need a diagram item that isn't listed here? Contact us with the item number and your heater's rating plate details, and we will check what can be supplied.

Other Astralpool IXI / Zodiac JXi Parts

• Flue Adaptors, 150 mm and 200 mm (WJXI150IN, WJXI200IN)
• Vent Terminal Housing Kit (R0593100)
• Heater Jacket Top Kit (R0592400)
• Access Door Kit (R0589600)
• User Interface Control Kit (R0591900)
• JXi 200 Natural Gas to LPG Kit (R0730201)
• JXi 370 Natural Gas to ULPG Kit (R0730202)
• Connect 10 Interface (14608)
• Water Pressure Switch, Tecmark

Manufacturer Catalogues, Diagrams & Part Numbers

Need more exploded views, spare part numbers or product numbers? See the manufacturer catalogues: Zodiac Catalogue 2026 | Astralpool Catalogue 2026.

Before ordering: confirm the part is correct for your equipment. Use the diagrams and catalogues above, seek professional assistance, or contact us with photos of your existing part, model details, serial numbers and any labels. Parts must be diagnosed and fitted by a qualified and experienced person, and gas work must be done by a licensed gas fitter.

Common search terms: Astralpool IXI parts, Zodiac JXi parts, IXI 200 parts, IXI 370 parts, JXi 200 parts, JXi 370 parts, IXI gas heater spare parts, JXi pool heater parts, Jandy JXi parts, IXI exploded diagram, JXi parts diagram, WWDG SpaPro.