Replacement Parts Diagram for Sta-Rite Max-E-Therm SR400NA Heater
Having a problem? Pick one to see the parts that usually fix it (optional)
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$1,099.99Notify me
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$1,248.99
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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$32.99
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$51.99
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$70.99
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Most common fix Pentair Manifold Kit for MasterTemp and Max-E-Therm 400 Heaters$489.99Notify me
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$42.99Notify me
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Most common fix Pentair Thermal Regulator For MasterTemp and Max-E-Therm Heaters$62.99
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$6.99Notify me
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$89.99
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$379.99
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$649.99
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Most common fix Pentair Display Cover For Sta-Rite Max-E-Therm Heaters$31.99
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$84.99
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$229.99Notify me
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Most common fix Pentair Control Board with 6 Button Pad For MasterTemp and Max-E-Therm Heaters | 42002-0007S$498.99
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$101.99
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$72.99
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Most common fix Pentair Transformer with Dual & Single Adapter For MasterTemp and Max-E-Therm Heaters | 120V/240V$49.99
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Most common fix Pentair Dual Voltage Transformer Kit For Max-E-Therm and MasterTemp Heaters | 115V/230V$65.99
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$268.99
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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$8.99
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Most common fix Pentair Terminal Board For MasterTemp And Max-E-Therm$39.99Notify me
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$71.99
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Most common fix Pentair High Limit Switch for MasterTemp And Max-E-Therm Heaters$52.99
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Most common fix Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters$119.99
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$495.99
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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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Sta-Rite Max-E-Therm SR400NA Heater Diagram with Parts Like Manifold Kits, Gas Valves, and Safety Switches
Use the SR400NA parts diagram above to identify your needed components, then browse the listings below for real-time inventory and product details.
Protect wiring with the 32850-0099 Fireman's Switch Fuse for 1.25 amp safety control.
Replace drain hardware using the U178-920P Drain Plug with O-Ring for Max-E-Therm and MasterTemp heaters.
Restore proper gas regulation with the 42001-0051S Combination Gas Control Valve Kit.
Ensure gasket integrity by replacing with the 77707-0011 Blower Adapter Plate Gasket Kit.
Service your unit's water distribution with the 77707-0016 Manifold Kit for 400 BTU models.
Maintain flow rate with the 77707-0001 Manifold Bypass Valve.
Link internal water pathways using the 77707-0017 Connector Tube Kit.
Replace emergency gas cutoff with the 42002-0025S Automatic Gas ShutOff Switch.
Swap voltage adapters using the 42001-0105S Selector Volt Plug Kit.
Control air-to-fuel ratio with the 77707-0113 Air Orifice Kit for 400K BTU heaters.
All listings align with the Sta-Rite Max-E-Therm SR400NA diagram above for easy part matching and in-stock reference.



























































































