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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Pentair 472251 Flame Sensor | MiniMax NT Heaters
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Pentair 472251 Flame Sensor is an OEM part engineered to maintain safe operation in MiniMax NT TSI pool and spa heaters. As a critical safety device, it verifies the presence of the burner flame and communicates with the control board to allow or stop heating. This prevents hazards such as unburned gas buildup and ensures efficient, dependable heater performance. Designed to OEM Pentair specifications, the sensor is heat-resistant and durable enough for long service life in pool environments. Its direct compatibility with MiniMax NT TSI models makes it a reliable solution for replacing faulty or worn flame sensors. With straightforward installation, the 472251 restores proper heater function and peace of mind for pool owners.
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OEM Replacement Sensor: Built for MiniMax NT TSI heaters to meet Pentair’s original safety and performance standards.
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Critical Heater Safety Role: Detects burner flame presence and signals control board, preventing unsafe heating conditions.
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Reliable Compatibility: Designed to fit Pentair MiniMax NT TSI heaters directly, ensuring correct installation and operation.
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Long-Lasting Construction: Manufactured from durable, heat-resistant materials for consistent performance over time.
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Quick Replacement Process: Easy to install, allowing technicians and homeowners to restore heater reliability and safety quickly.
- (1) Pentair 472251 Flame Sensor
- Pentair MiniMax NT Heaters