Pentair Air Blower Kit, Natural Gas, 333NA Model for Max-E-Therm 333 Natural Gas | 77707-0252
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- SKU:
- 77707-0252
-
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About This Item
The Pentair Air Blower Kit (77707-0252) is the OEM replacement blower assembly for the Max-E-Therm 333NA Natural Gas heater. This kit includes a single-volt blower adapter and contains all components required to restore the combustion air delivery system on the 333NA model.
⚠️ IMPORTANT: KIT LISTING — MULTIPLE COMPONENTS INCLUDED
This listing is a kit, not a single blower unit. The kit includes the air blower assembly and a single-volt blower adapter. All components are intended for use together as a complete replacement assembly.
⚠️ IMPORTANT: LICENSED TECHNICIAN REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.
The air blower supplies forced combustion air to the Max-E-Therm 333NA burner system, ensuring the correct air-to-gas ratio for efficient and safe ignition. A failing blower can result in ignition lockout, incomplete combustion, or nuisance fault codes on the heater's control board. Replacing the blower kit with the OEM assembly restores proper airflow to the burner tray and returns the heater to factory combustion performance. This kit is specific to the Natural Gas 333NA model — confirm your heater's model number and fuel type before ordering.
Specifications
| Pentair Part Number | 77707-0252 |
| Part Name | Air Blower Kit, Natural Gas, 333NA Model |
| Fuel Type | Natural Gas |
| Compatible Model | Max-E-Therm 333NA only |
| Includes | Air blower assembly; single-volt blower adapter |
| Quantity Included | Kit |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | Max-E-Therm 333 Natural Gas | 333NA | Air Blower Kit for Natural Gas 333NA Model only |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
This kit is model- and fuel-type-specific. The 333NA designation confirms Natural Gas — a separate blower kit is required for the Propane (LP) variant of the Max-E-Therm 333 (77707-0255). Before ordering, locate the rating plate on your heater and confirm both the BTU model number (333) and the fuel type (NG). If your existing blower carries a part number stamped on its housing, match it to 77707-0252 before proceeding. When replacing the blower, have a licensed pool professional or HVAC technician perform the work — gas burner system components are not field-serviceable by unlicensed personnel.
