Sta-Rite Max-E-Therm SR400NA Heater Diagram & Part List
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.
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Having a problem? Pick one to see the parts that usually fix it (optional)
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Most common fix Pentair 77707-0234 Tube Sheet Coil Assembly - MasterTemp & Max-E-Therm 400 Pool Heater$1,249.99
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$1,199.99
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Most common fix Pentair Tube Sheet Coil Sealing O-Ring Kit For MasterTemp and Max-E-Therm 400 Heaters | 12 Pack$39.99
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$54.99
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$71.99
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Most common fix Pentair Manifold Kit for MasterTemp and Max-E-Therm 400 Heaters$529.99Notify me
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$49.99Notify me
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Most common fix Pentair Thermal Regulator For MasterTemp and Max-E-Therm Heaters$69.99
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$11.99
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$96.99
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$399.99
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$825.13
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Most common fix Pentair Display Cover For Sta-Rite Max-E-Therm Heaters$37.99
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$89.99Notify me
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$249.99
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Most common fix Pentair Control Board with 6 Button Pad For MasterTemp and Max-E-Therm Heaters | 42002-0007S$499.99
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$69.99
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$104.99
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Most common fix Pentair Transformer with Dual & Single Adapter For MasterTemp and Max-E-Therm Heaters | 120V/240V$54.99Notify me
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Most common fix Pentair Dual Voltage Transformer Kit For Max-E-Therm and MasterTemp Heaters | 115V/230V$75.99
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$299.99
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Most common fix Pentair Fireman's Switch Fuse 1.25 Amp MasterTemp Sta-Rite Max-E-Therm ETI 400 Gas Heaters$12.99
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Most common fix Pentair Terminal Board For MasterTemp And Max-E-Therm$49.99Notify me
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$81.99
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Most common fix Pentair High Limit Switch for MasterTemp And Max-E-Therm Heaters$59.99
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Most common fix Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters$126.99
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$54.99
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Sta-Rite Max-E-Therm SR400NA Heater Diagram with Compatible Replacement Parts In Stock
View the SR400NA diagram above to locate the part you need, then explore the full selection below with real-time availability and fast shipping online.
Replace your worn control pad using the 472610Z Switch Membrane Pad for Max-E-Therm and MasterTemp models.
Ensure accurate temperature sensing with the 42001-0053S Thermistor for ETI 400, Max-E-Therm, and MasterTemp heaters.
Restore ignition function with the 77707-0054 Igniter and Gasket Kit.
Upgrade heating performance with the 77707-0016 Manifold Kit designed for 400K BTU models.
Swap damaged panels with the 77707-0013 Membrane Panel Control Board Kit.
Prevent leaks using the U178-920P Drain Plug with O-Ring for easy maintenance.
Address flue overheating with the 42002-0024S Stack Flue Sensor.
Replace interface electronics using the 42002-0007S Control Board and Pad Kit.
Maintain combustion stability with the 77707-0204 Flameholder Kit for 400K heaters.
Monitor high-temp conditions with the 42001-0063S High Limit Switch by Swimables.
All listings correspond to the SR400NA diagram shown above, ensuring accurate replacements and part identification with online availability.