Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
Jandy LXi Heater Replacement Parts Diagram
Interactive parts diagram
81 parts · 1 with cheaper aftermarket options. Tap a number on the diagram, or search by part number.
Scroll or pinch to zoom · drag to move
Heater made before July 2009? Show older parts
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Not sold online Jandy complete heat exchanger (polymer/copper): 250K BTU R0453303; 300K BTU R0453304; 400K BTU R0453305 (discontinued)
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Not sold online Jandy tube assembly (Cu), with hardware and gaskets: 250K BTU R0453403; 300K BTU R0453406; 400K BTU R0453405; LXi ASME compliant heat exchanger tube assembly, CuNi: 250K BTU R0477003; 300K BTU R0477006; 400K BTU R0477005
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Not sold online Jandy heat exchanger end baffles: 250K BTU R0453503; 300K BTU R0453504; 400K BTU R0453505 (discontinued)
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Not sold online Jandy front header, with hardware and gaskets (discontinued)
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Original (OEM) Jandy Bypass Assembly For LXi Heaters$52.99Notify me
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Not sold online Jandy bypass assembly with O-ring
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Not sold online Jandy spring, bypass
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$54.99
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Original (OEM) Jandy Union Tail Piece Kit For Jandy PlusHP PHPF and PHPM Pumps | 2" x 2 1/2" | Set of 2$49.99
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Not sold online Jandy rear header, with hardware and gaskets
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Not sold online Jandy gasket, header (front or rear), 16/pk
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Not sold online Jandy gasket, header (front or rear), 16/pk
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Original (OEM) Jandy Drain Plug With O-Ring For Pumps and Heaters | 2 Pack$17.50
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$41.99Notify me
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Not sold online Jandy return header cap and O-ring (discontinued)
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Original (OEM) Jandy Burner With Tap and Gasket For LXi Heaters$79.80
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Not sold online Jandy manifold, gas, natural gas (low altitude): 250K BTU R0454803; 300K BTU R0454804; 400K BTU R0454805; manifold, gas, LP (low altitude): 250K BTU R0455003; 300K BTU R0455004; 400K BTU R0455005
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$362.71
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Not sold online Jandy flue collector with gaskets: 250K BTU R0455503; 300K BTU R0455504; 400K BTU R0455505 (discontinued)
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Original (OEM) Jandy Blower Assembly With Gasket For LXI Heaters$619.99Notify me
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Not sold online Jandy air orifice adjust bracket (discontinued)
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Not sold online Jandy flue vent assembly with gasket, July 2009 and newer: 250K BTU R0495503; 300K BTU R0495504; 400K BTU R0495505
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Not sold online Jandy flue vent assembly with gasket, before July 2009: 250K BTU R0455803; 300K BTU R0455804; 400K BTU R0455805 (discontinued)
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Not sold online Jandy hot plate, split plate, July 2009 and newer: 250/300K BTU R0495401; 400K BTU R0495402 (discontinued)
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Not sold online Jandy outdoor grill, before July 2009: 250/300K BTU R0456001; 400K BTU R0456002 (discontinued)
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Not sold online Jandy flue box assembly with gasket (discontinued)
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Original (OEM) Jandy Vent Fusible Link For LXi JXi and Legacy LRZ Heaters$22.40
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Original (OEM) Jandy Transformer For LXi Heaters | E0263200$136.11
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Original (OEM) Jandy Air Pressure Switch For JXI and LXI Heaters$138.08Notify me
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$129.99
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Not sold online Jandy gasket, temperature sensor (discontinued)
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Not sold online Jandy nut, sensor retainer
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Original (OEM) Jandy Ignition Control For JXi and LXi Heaters$452.21
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Original (OEM) Jandy Water Pressure Switch For LXi Heaters$88.99
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Original (OEM) Jandy Water Pressure Switch For Heaters | 2 PSI$100.56Notify me
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$44.99
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Not sold online Jandy water pressure switch tubing
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Original (OEM) Jandy High Limit Switch Set For LXi Heaters | 130F and 150F$85.99
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$44.99
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Original (OEM) Jandy Hi-Limit Switch For Heaters | 150F$51.80Notify me
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Not sold online Jandy high-limit plug (set of 3)
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Original (OEM) Jandy High Limit Switch Harness For LXi and LRZE Heaters$48.99
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Original (OEM) Jandy Hot Surface Ignitor For LXi Heaters$399.99
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Original (OEM) Jandy Power Distribution Board For LXi and JXI Heaters$151.66
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$592.86
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Original (OEM) Jandy Universal Control User Interface For LXi Heaters$549.99
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Original (OEM) Jandy Interface and Bezel Display Cover For LXi Heaters$99.99
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Original (OEM) Jandy Flame Sensor Rod For LXi Heaters$78.40Notify me
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Original (OEM) Jandy Teledyne Fusible Link LXI Legacy and LX/LT Heaters$18.99
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Not sold online Jandy bracket, fusible link
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Not sold online Jandy door with latch: 250K BTU R0458703; 300K BTU R0458704; 400K BTU R0458705 (discontinued)
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Not sold online Jandy door latch assembly with handle
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Not sold online Jandy panel, side, left
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Not sold online Jandy panel, side, right (discontinued)
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Not sold online Jandy panel, bottom, header in/out
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Not sold online Jandy panel, top, header in/out (discontinued)
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Not sold online Jandy panel, side, return header (discontinued)
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Not sold online Jandy panel, side support (discontinued)
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Not sold online Jandy rear panel: 250K BTU R0459803; 300K BTU R0459804; 400K BTU R0459805
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Not sold online Jandy vent back cover: 250/300K BTU R0459401; 400K BTU R0459402 (discontinued)
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Not sold online Jandy top assembly, split flue, July 2009 and newer: 250K BTU R0495303; 300K BTU R0495304; 400K BTU R0495305 (discontinued)
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Not sold online Jandy top assembly, before July 2009: 250K BTU R0459503; 300K BTU R0459504; 400K BTU R0459505 (discontinued)
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Not sold online Jandy front, support door: 250K BTU R0459903; 300K BTU R0459904; 400K BTU R0459905
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Not sold online Jandy housing air chamber: 250K BTU R0460003; 300K BTU R0460004; 400K BTU R0460005
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Not sold online Jandy cover, air chamber: 250K BTU R0460103; 300K BTU R0460104; 400K BTU R0460105
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Not sold online Jandy cover, manifold
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Not sold online Jandy grommet seal 2"
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Not sold online Jandy air duct
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Not sold online Jandy LXi inlet/outlet bronze header: 250K BTU R0476603; 300K BTU R0476606; 400K BTU R0476605
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Not sold online Jandy LXi return header, bronze
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Not sold online Jandy LXi heat exchanger hardware kit, bronze
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Not sold online Jandy LXi I/O header bypass assembly with hardware (bronze headers): 250K BTU R0476803; 300K BTU R0476805; 400K BTU R0476806
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Not sold online Jandy LXi bypass spring (bronze headers): 250K BTU R0476903; 300K BTU R0476906; 400K BTU R0476905
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Not sold online Jandy LXi bypass gasket (bronze headers)
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Not sold online Jandy LXi temp sensor mounting bracket (bronze headers)
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Not sold online Jandy LXi tube assembly, pressure switch (bronze headers) (discontinued)
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Not sold online Jandy LXi heat exchanger flange & gasket (set of 2) (bronze headers), superseded by R0461500 (discontinued)
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Not sold online Jandy LXi heat exchanger flange bolts (bronze headers) (discontinued)
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Not sold online Jandy LXi in/out header plug, 3/4" NPT (bronze headers)
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Not sold online Jandy LXi bronze header drain plug
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Not sold online Jandy LXi bronze header drain plug
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Not sold online Jandy heat exchanger complete, bronze, Cu: 250K BTU R0500503; 300K BTU R0500504; 400K BTU R0500505; heat exchanger complete, bronze, CuNi: 250K BTU R0500603; 300K BTU R0500604; 400K BTU R0500605
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No parts match.
Don't see your part? Ask us and we'll find it.
Also fits your Jandy LXi Heater
Not shown on the diagram, but made for this pump.
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$149.99
Fit guide
Which LXi part fits your heater?
Find the size (250, 300 or 400) and fuel (N natural gas, P propane) in the model number on the rating plate, for example LXi250N or LXi400P. Part numbers come from the LXi Low NOx parts list in the Fluidra 2026 catalog. Most electrical and control parts are the same on all three sizes.
Heat exchanger by heater size
- 250KR0453303LXi250 polymer headers · bronze headers Cu R0500503, CuNi R0500603
- 300KR0453304LXi300 polymer headers · bronze headers Cu R0500504, CuNi R0500604
- 400KR0453305LXi400 polymer headers · bronze headers Cu R0500505, CuNi R0500605
Gas parts by fuel
- Gas valve natural gas
- R0455200
- Gas valve propane (LP)
- R0455300
- Gas manifold, natural 250 / 300 / 400
- R0454803 / R0454804 / R0454805
- Gas manifold, propane 250 / 300 / 400
- R0455003 / R0455004 / R0455005
High limits and sensor
Made before or after July 2009?
Before July 2009
- Top assembly 250 / 300 / 400: R0459503 / R0459504 / R0459505
- Outdoor grill: R0456001 (250, 300), R0456002 (400)
- Flue vent assembly: R0455803 / R0455804 / R0455805
July 2009 and newer (split flue)
- Top assembly 250 / 300 / 400: R0495303 / R0495304 / R0495305
- Hot plate, split plate: R0495401 (250, 300), R0495402 (400)
- Flue vent assembly: R0495503 / R0495504 / R0495505
The lower drawing shows the water-side parts for heaters with polymer headers. Heaters with bronze headers use items 73 to 85 instead.



























