{"product_id":"sta-rite-max-e-therm-400-hd-natural-gas-pool-spa-heater-400k-btu-sr400hd-parts-diagram","title":"Sta-Rite Max-E-Therm 400 HD Natural Gas Pool \u0026 Spa Heater 400K BTU SR400HD Parts \u0026 Diagram","description":"\u003cp\u003eReplacement parts and exploded parts diagram for the Sta-Rite Max-E-Therm 400 HD Natural Gas Pool \u0026amp; Spa Heater 400K BTU (model SR400HD). 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.\u003c\/p\u003e\u003cp\u003eParts marked Alternate are compatible replacements from other manufacturers.\u003c\/p\u003e\u003ch3\u003eOther Parts on This Diagram\u003c\/h3\u003e\u003cp\u003eThese parts are not listed for online purchase. Contact us with the diagram number and part number to order.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e#1\u003c\/strong\u003e – 77707-0009 – Display Cover Retainer Cap \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#1\u003c\/strong\u003e – 77707-0234 – 400K Tube Sheet Coil Assy (BEFORE 1\/13\/09) \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#1\u003c\/strong\u003e – 77707-0244 – 400K Cu-Ni Tube SHT Coil Assy (BEFORE 1\/13\/09) \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#1\u003c\/strong\u003e – 474065 – 400K Cu-Ni Tube Sheet Coil Assy (AFTER 1\/12\/09) \u003cem\u003e(Water System - For Heaters Manufactured after 01\/12\/09 (New Tub Design))\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#2\u003c\/strong\u003e – 38404-4097S – .75\" Service Union \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#2\u003c\/strong\u003e – 42001-0008S – Max-E-Therm Heater Display Cover \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#3\u003c\/strong\u003e – 42001-0030S – Ignitor Bracket \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#6\u003c\/strong\u003e – 42001-0007S – Manifold Switch Cover \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#7\u003c\/strong\u003e – 42002-0025S – Max-E-Therm Automatic GAS Shutoff Switch \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#7\u003c\/strong\u003e – 42002-0025T – Automatic GAS Shut-Off Switch \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#7\u003c\/strong\u003e – 77707-0017 – Connector Tube W\/ Oring \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#9\u003c\/strong\u003e – 473716Z – Asme Max-E-Therm Water Pressure Switch \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#10\u003c\/strong\u003e – 42001-0056S – Max-E-Therm Terminal Board \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#11\u003c\/strong\u003e – 32850-0099z – 32850-0099 1.25A Max-E-Therm Firemans Switch Fuse \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#12\u003c\/strong\u003e – 42001-0052S – Max-E-Therm Ignition Control Module \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#14\u003c\/strong\u003e – 77707-0002 – Max-E-Therm Upper Right-Hand Enclosure Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#14\u003c\/strong\u003e – 42001-0061S – Max-E-Therm AIR Flow Switch \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#15\u003c\/strong\u003e – 42002-0007S – Max-E-Therm Control Board Kit \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#16\u003c\/strong\u003e – 42001-0200S – Combustion Chamber Assy \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#16\u003c\/strong\u003e – 474095 – Combustion Chamber Assy (AFTER 1\/12\/09) \u003cem\u003e(Burner System - For Heaters Manufactured after 01\/12\/09 (New Tub Design))\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#16\u003c\/strong\u003e – 77707-0022 – Junction Box Cover PKG \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#17\u003c\/strong\u003e – 42001-0001S – Max-E-Therm Lower Enclosure \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#19\u003c\/strong\u003e – 77707-3200N – NG Upper Left Enclosure Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#19\u003c\/strong\u003e – 77707-3333N – NG Upper Left Enclosure Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#19\u003c\/strong\u003e – 77707-3400N – NG Upper Left Enclosure Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#19\u003c\/strong\u003e – U9-152 – Oring \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#20\u003c\/strong\u003e – U178-920P – .25\"MPT Drain Plug W\/ Oring \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#20\u003c\/strong\u003e – 072555 – #2-112 Nitrile O-Ring Cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#20\u003c\/strong\u003e – 25010-0200 – Pld\/Ptm AIR Relief Valve Assy \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#21\u003c\/strong\u003e – U78-60ZPS – .75\" Zinc Square Head Pipe Plug \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#27\u003c\/strong\u003e – 474094 – Combustion Chamber Cover Assy (AFTER 1\/12\/09) \u003cem\u003e(Burner System - For Heaters Manufactured after 01\/12\/09 (New Tub Design))\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#28\u003c\/strong\u003e – 42002-0005S – Max-E-Therm Metal Vent Cover \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0411 – 400K NG GAS Orifice Kit \u003cem\u003e(Burner System - Not included with heater. Order separately.)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0011 – Max-E-Therm Adapter Plate Gasket Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0204 – 400K BTU Flameholder Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0008 – Max-E-Therm Insulation Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 42001-0074S – Lower Enclosure Insulation Kit \u003cem\u003e(Burner System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 42001-0104S – Max-E-Therm Wiring Harness \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 42001-0105S – Max-E-Therm 120\/240V Plug Kit \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0004 – Control Board Enclosure\/Membrane Panel Kit \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0013 – Control Board Enclosure\/Membrane Panel Kit \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 42002-0009 – Max-E-Therm Stack Flue Switch \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 42001-0057S – 115\/230V Transformer (BEFORE 2004) \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0057 – Single Voltage Transformer Kit \u003cem\u003e(Electrical System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 77707-0120 – Max-E-Therm Manifold Oring Kit \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 460940 – 400K Asme Heat Exchanger Kit \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 474096 – 400K Asme Heat Exchanger Kit \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Shown\u003c\/strong\u003e – 460924 – Asme Mastertemp Thermal Regulator Kit (BEFORE 10\/2012) \u003cem\u003e(Water System)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease confirm your model number matches your existing equipment before ordering.\u003c\/p\u003e","brand":"Sta-Rite","offers":[{"title":"Default Title","offer_id":52555433705688,"sku":"DIAGRAM-SR400HD","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/STA-15-508-sch.jpg?v=1790367042","url":"https:\/\/poolsupply4less.com\/products\/sta-rite-max-e-therm-400-hd-natural-gas-pool-spa-heater-400k-btu-sr400hd-parts-diagram","provider":"Pool Supply 4 Less","version":"1.0","type":"link"}