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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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475978 | Pentair Heater Fan Control Board For ETI 400 Heaters
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Goes with this part
CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
Other parts on the same Pentair ETi 400 Heater
The Pentair 475978 Heater Fan Control Board is an OEM replacement part designed for ETI 400 High-Efficiency Pool and Spa Heaters. This board plays a critical role in managing fan operations, ensuring the heater runs safely and efficiently by monitoring air flow through the system. Equipped with air flow switches, it senses pressure differentials and signals the control board when proper circulation is achieved, protecting the heater from unsafe conditions. Built to Pentair’s original specifications, the OEM fan control board integrates seamlessly with existing systems, supporting precise temperature control and reliable performance. Its durable construction makes it a vital replacement for maintaining the efficiency and longevity of your ETI 400 heater.
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OEM Replacement Board: Pentair 475978 fan control board is engineered for ETI 400 heaters, ensuring proper integration and dependable performance.
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Air Flow Monitoring: Features built-in air flow switches that sense pressure differences, completing the circuit only when safe air flow is detected.
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Supports Efficiency & Safety: Maintains proper combustion conditions by regulating fan operations, contributing to heater efficiency and user safety.
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Durable OEM Construction: Manufactured from quality materials that meet Pentair standards, offering long-lasting reliability under continuous use.
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Straightforward Installation: Designed for easy replacement, allowing the board to integrate seamlessly into existing ETI 400 heater setups.
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Critical Heater Functionality: Ensures heating operations are not compromised by improper air flow, protecting system integrity.
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Enhances System Longevity: By regulating safe fan operation, it helps extend the life of the ETI 400 heating system.
- (1) Control Board
- (4) Clips
- Pentair ETI 400 Heaters
